Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions)
Two particles A and B are moving with constant velocities v1 and v2. At t = 0, v1 makes an angle theta 1 with the line joining A and B and v2 makes an angle theta 2 with the line joining A and B. (a) Find the condition for A and B to collide. (b) Find the time after which A and B will collide if separation between them is d at t = 0.
28
Aug
Two particles A and B are moving with constant velocities v1 and v2. At t = 0, v1 makes an angle theta 1 with the line joining A and B and v2 makes an angle theta 2 with the line joining A and B. (a) Find the condition for A and B to collide. (b) [...]
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Two particles A and B are moving with constant velocities v 1 and v 2 . At t = 0 ,
Two particles A and B are moving with constant velocities v_1 and v_2. At t = 0 ,
v 1 makes an angle θ 1 with the line joining A and B and v 2 makes an angle θ 2 with the line joining A and B. Find their velocity of approach. ,
What fraction of an iceberg ice beneath the surface of the sea? Density of sea water (ρ) = 1.028 × 10^3kg/m^3, density of ice d = 0.917 × 10^3 kg/m^3
28
Aug
What fraction of an iceberg ice beneath the surface of the sea? Density of sea water (ρ) = 1.028 × 10^3kg/m^3, density of ice d = 0.917 × 10^3 kg/m^3 density of ice d. =0.917×103kg/m3 What fraction of an iceberg ice beneath the surface of the sea? Density of sea water (ρ)=1.028×103kg/m3 August 28, 2020 [...]
Two particles A and B are moving with constant velocities v 1 and v 2 . At t = 0, v 1 makes an angle θ 1 with the line joining A and B and v 2 makes an angle θ 2 with the line joining A and B. Find their velocity of approach.
28
Aug
Two particles A and B are moving with constant velocities v 1 and v 2 . At t = 0, v 1 makes an angle θ 1 with the line joining A and B and v 2 makes an angle θ 2 with the line joining A and B. Find their [...]
Two metal beams are joined together by four rivets, as the drawing indicates. Each rivet has a radius of 5.0 × 10^−3 m and is to be exposed to a shearing stress of no more than 5.0 × 10^8 Pa. What is the maximum tension T that can be applied to each beam, assuming that each rivet carries one-fourth of the total load?
28
Aug
Two metal beams are joined together by four rivets, as the drawing indicates. Each rivet has a radius of 5.0 × 10^−3 m and is to be exposed to a shearing stress of no more than 5.0 × 10^8 Pa. What is the maximum tension T that can be applied to each beam, assuming that [...]
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as the drawing indicates. Each rivet has a radius of 5.0×10−3 m and is to be exposed to a shearing stress of no more than 5.0×108 Pa. What is the maximum tension →TT→ that can be applied to each beam ,
assuming that each rivet carries one-fourth of the total load? ,
Two metal beams are joined together by four rivets ,
Two particles are located on a horizontal plane at a distance `60 m`. At `t = 0` both the particles are simultaneously projected at angle `45^@` with velocities `2 ms^-1 and 14 m s^-1`, respectively. Find (a) Minimum separation between them during motion. (b) At what time is the separation between them minimum ?
28
Aug
Two particles are located on a horizontal plane at a distance `60 m`. At `t = 0` both the particles are simultaneously projected at angle `45^@` with velocities `2 ms^-1 and 14 m s^-1`, respectively. Find (a) Minimum separation between them during motion. (b) At what time is the separation between them minimum ? respectively. [...]
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respectively. Find (a) Minimum separation between them during motion. (b) At what time is the separation between them minimum ? ,
Two particles are located on a horizontal plane at a distance `60 m`. At `t = 0` both the particles are simultaneously projected at angle `45^@` with velocities `2 ms^-1 and 14 m s^-1` ,
Two equal and opposite forces F and −F act on a rod of unifrom cross-sectional ara A, as shown in the figure. Find the (i) shearing (ii) longitual stress on the section AB.
28
Aug
Two equal and opposite forces F and −F act on a rod of unifrom cross-sectional ara A, as shown in the figure. Find the (i) shearing (ii) longitual stress on the section AB. as shown in the figure. Find the (i) shearing (ii) longitual stress on the section AB. Two equal and opposite forces F [...]
A,B,C, and D are four trees, located at the vertices of a square (Fig. 5.117). Wind blows from A to B with uniform speed. The ratio of times of flight of a bird from A to B and from B to A is n. At what angle should the bird fly from the direction of wind flow, in order that it starts from A and (a) reaches C, (b) reaches D ?
28
Aug
A,B,C, and D are four trees, located at the vertices of a square (Fig. 5.117). Wind blows from A to B with uniform speed. The ratio of times of flight of a bird from A to B and from B to A is n. At what angle should the bird fly from the direction of [...]
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A helicopter flies horizontally with constant velocity in a direction θ east of north between two points A and B ,
A) ,
and D are four trees ,
at distance d apart. Wind is blowing from south with constant speed u; the speed of helicopter relative to air is nu ,
B ,
C ,
where n > 1. Find the speed of the helicopter along AB. The helicopter returns from B to A with same speed nu relative to air in same wind. Find the total time for the journeys. ,
Two rods A and B. each of equal length but different materials are suspended from a common support as shown in the figure. The roads A and B can support a maximum load of W 1 = 600 N and W 2 = 6000 N, respectively. If their cross-sectional areas are A 1 = 10mm^2 and A 2 = 1000 mm^ 2 , respectively, then identify the stronger material.
28
Aug
Two rods A and B. each of equal length but different materials are suspended from a common support as shown in the figure. The roads A and B can support a maximum load of W 1 = 600 N and W 2 = 6000 N, respectively. If their cross-sectional areas are A 1 [...]
A steel wire 2 m long is suspended from the ceiling. When a mass is hung at its lower end, the incerase in length recorded is 1 cm. Determine the strain in the wire.
28
Aug
A steel wire 2 m long is suspended from the ceiling. When a mass is hung at its lower end, the incerase in length recorded is 1 cm. Determine the strain in the wire. A steel wire 2 m long is suspended from the ceiling. When a mass is hung at its lower end the [...]
A helicopter flies horizontally with constant velocity in a direction θ east of north between two points A and B, at distance d apart. Wind is blowing from south with constant speed u; the speed of helicopter relative to air is nu, where n > 1. Find the speed of the helicopter along AB. The helicopter returns from B to A with same speed nu relative to air in same wind. Find the total time for the journeys.
28
Aug
A helicopter flies horizontally with constant velocity in a direction θ east of north between two points A and B, at distance d apart. Wind is blowing from south with constant speed u; the speed of helicopter relative to air is nu, where n > 1. Find the speed of the helicopter along AB. The [...]
Tags:
A helicopter flies horizontally with constant velocity in a direction θ east of north between two points A and B ,
at distance d apart. Wind is blowing from south with constant speed u; the speed of helicopter relative to air is nu ,
where n > 1. Find the speed of the helicopter along AB. The helicopter returns from B to A with same speed nu relative to air in same wind. Find the total time for the journeys. ,