Chapter 5 – Laws of Motion
A 40 kg slab rests on a frictionless floor. A 10 kg block rests on the top of the slab as shown in fig. The static coefficient of friction between the block and the slab is 0.70 while the kinetic coefficient is 0.50. The 10 kg block is acted upon by a horizontal force of 100 N. If g = 9.8 m s^−2, the resulting acceleration of the slab will be
12
Sep
A 40 kg slab rests on a frictionless floor. A 10 kg block rests on the top of the slab as shown in fig. The static coefficient of friction between the block and the slab is 0.70 while the kinetic coefficient is 0.50. The 10 kg block is acted upon by a horizontal force of [...]
In the figure given the system is in equilibrium what is the maximum value that we can have if the friction force on the 40 N block cannot exceed 12.0 N.
12
Sep
In the figure given the system is in equilibrium what is the maximum value that we can have if the friction force on the 40 N block cannot exceed 12.0 N. In the figure given the system is in equilibrium what is the maximum value that we can have if the friction force on the [...]
A mass of 6kg is suspended by a rope of length 2 m from ceiling. A force of 50 N in the horizontal is applied at mid point of the rope. The angle rope makes with vertical in equilibrium is
12
Sep
A mass of 6kg is suspended by a rope of length 2 m from ceiling. A force of 50 N in the horizontal is applied at mid point of the rope. The angle rope makes with vertical in equilibrium is A mass of 6kg is suspended by a rope of length 2 m from ceiling. [...]
Three forces F1,F2 and F3 together keep a body is equilibrium. If F1=3N along the positive X-axis F2=4N along the positive Y-axis, then the third force F2 is:
12
Sep
Three forces F1,F2 and F3 together keep a body is equilibrium. If F1=3N along the positive X-axis F2=4N along the positive Y-axis, then the third force F2 is: F2 and F3 together keep a body is equilibrium. If F1=3N along the positive X-axis F2=4N along the positive Y-axis then the third force F2 is: Three [...]
A block of mass 15 kg is held by a string on an inclined plane (angle 30∘). The tension T in string is (g=10m/s)
12
Sep
A block of mass 15 kg is held by a string on an inclined plane (angle 30∘). The tension T in string is (g=10m/s) A block of mass 15 kg is held by a string on an inclined plane (angle 30∘). The tension T in string is (g=10m/s) September 12, 2020 Category: Chapter 5 - [...]
Two particles of mass m1 and m2 in projectile motion have velocities v1 < v2 respectively at tine t=0. They collide at time t0. Their velocities become v1′ and v2′ at time 2 t0′ while still moving in air. The value of ∣∣∣∣(m1v1′+ m2v2′) − (m1v1 + m2v2)∣∣∣∣ is
12
Sep
Two particles of mass m1 and m2 in projectile motion have velocities v1 < v2 respectively at tine t=0. They collide at time t0. Their velocities become v1′ and v2′ at time 2 t0′ while still moving in air. The value of ∣∣∣∣(m1v1′+ m2v2′) − (m1v1 + m2v2)∣∣∣∣ is A 5 kg shell kept at [...]
A man of 50 kg is standing at one end on a boat of length 25 m and mass 200 kg.If he starts running and when he reaches the other end , he has a velocity 2ms^−1 with respect to the boat.The final velocity of the boat is (in ms^−1).
12
Sep
A man of 50 kg is standing at one end on a boat of length 25 m and mass 200 kg.If he starts running and when he reaches the other end , he has a velocity 2ms^−1 with respect to the boat.The final velocity of the boat is (in ms^−1). A man of 50 kg [...]
A 5 kg shell kept at rest suddenly splits up into three parts. If two parts of mass 2 kg each are found flying due north and east with velocity 5 m/s each, what is the velocity of third part after explosion ?
11
Sep
A 5 kg shell kept at rest suddenly splits up into three parts. If two parts of mass 2 kg each are found flying due north and east with velocity 5 m/s each, what is the velocity of third part after explosion ? A 5 kg shell kept at rest suddenly splits up into three [...]
Two ice skaters A and B approach each other at right angles. Skater A has a mass 30kg and velocity 1m/s skater B has a mass 20kg and velocity 2m/s. They meet and cling together. Their final velocity of the couple is:
11
Sep
Two ice skaters A and B approach each other at right angles. Skater A has a mass 30kg and velocity 1m/s skater B has a mass 20kg and velocity 2m/s. They meet and cling together. Their final velocity of the couple is: The position-time graph of a body of mass 2 kg is as shown [...]
A 100 kg gun fires a ball of 1 kg horizontally from a cliff of height 500m. It falls on the ground at a distance of 400 m from the bottom of the cliff. the recoil velocity of the gun is ( Take g = 10ms^−2)
11
Sep
A 100 kg gun fires a ball of 1 kg horizontally from a cliff of height 500m. It falls on the ground at a distance of 400 m from the bottom of the cliff. the recoil velocity of the gun is ( Take g = 10ms^−2) The tension in the string in the pulley system [...]