JEE Mains Physics 2002-2019 Solved Video Solutions
A shell is fired from a fixed artillery gun with an initial speed u such that it hits the target on the ground at a distance R from it. If t1 and t2 , are the values of the time taken by it to hit the target in two possible ways, the product t1t2 is:
23
Oct
A shell is fired from a fixed artillery gun with an initial speed u such that it hits the target on the ground at a distance R from it. If t1 and t2 , are the values of the time taken by it to hit the target in two possible ways, the product t1t2 is: [...]
A plane is inclined at an angle α = 30° with respect to the horizontal. A particle is projected with a speed u = 2 ms^–1 from the base of the plane making an angle θ = 15° with respect to the plane as shown in the figure. the distance from the base at which the particle hits the plane is close to :
23
Oct
A plane is inclined at an angle α = 30° with respect to the horizontal. A particle is projected with a speed u = 2 ms^–1 from the base of the plane making an angle θ = 15° with respect to the plane as shown in the figure. the distance from the base at which [...]
The position vector of a particle changes with time according to the relation r→(t)=15t^2iˆ+(4−20t^2)jˆ What is the magnitude of the acceleration (in ms^-2)?
23
Oct
The position vector of a particle changes with time according to the relation r→(t)=15t^2iˆ+(4−20t^2)jˆ What is the magnitude of the acceleration (in ms^-2)? The position vector of a particle changes with time according to the relation r→(t)=15t^2iˆ+(4−20t^2)jˆ What is the magnitude of the acceleration (in ms^-2)? October 23, 2020 Category: Chapter 2 - Kinematics , [...]
The stream of a river is flowing with a speed of 2km/h. A swimmer can swim at a speed of 4km/h. What should be the direction of the swimmer with respect to the flow of the river to cross the river straight?
23
Oct
The stream of a river is flowing with a speed of 2km/h. A swimmer can swim at a speed of 4km/h. What should be the direction of the swimmer with respect to the flow of the river to cross the river straight? find the values of (2a1+3a2)(3a1-2a2) is Given |a1|=3 and |A2|=5 and |a1+a2|=5 October [...]
Given |a1|=3 and |A2|=5 and |a1+a2|=5, find the values of (2a1+3a2)(3a1-2a2) is
23
Oct
Given |a1|=3 and |A2|=5 and |a1+a2|=5, find the values of (2a1+3a2)(3a1-2a2) is find the values of (2a1+3a2)(3a1-2a2) is Given |a1|=3 and |A2|=5 and |a1+a2|=5 October 23, 2020 Category: Chapter 2 - Kinematics , JEE Mains Physics 2002-2019 Solved Video Solutions ,
Ship A is sailing towards north-east with velocity vector v = 30 i + 50 j km/hr where i points east and j north. Ship B is at a distance of 80 km east and 150 km north of Ship A and is sailing towards west at 10 km/hr. A will be at minimum distance from B in
23
Oct
Ship A is sailing towards north-east with velocity vector v = 30 i + 50 j km/hr where i points east and j north. Ship B is at a distance of 80 km east and 150 km north of Ship A and is sailing towards west at 10 km/hr. A will be at minimum distance [...]
Two cars of mass m1andm2 are moving in circle of radii r1andr2 , respectively . Their speeds are such that they make complete circles in the same time t . The ratio of their centripetal acceleration is :
19
Sep
Two cars of mass m1andm2 are moving in circle of radii r1andr2 , respectively . Their speeds are such that they make complete circles in the same time t . The ratio of their centripetal acceleration is : respectively . Their speeds are such that they make complete circles in the same time t . [...]
The variation of acceleration due to gravity g with distance d from centre of the earth is best represented by (R=Earth’s radius) :
19
Sep
The variation of acceleration due to gravity g with distance d from centre of the earth is best represented by (R=Earth’s radius) : The variation of acceleration due to gravity g with distance d from centre of the earth is best represented by (R=Earth's radius) : September 19, 2020 Category: Chapter 6 - Gravitation , [...]
Two satellites, A and B, have masses m and 2m respectively. A is in circular orbit of radius R, and B is in a circular orbit of radius 2R around the earth. The ratio of their kinetic energies, TA/TB is:
19
Sep
Two satellites, A and B, have masses m and 2m respectively. A is in circular orbit of radius R, and B is in a circular orbit of radius 2R around the earth. The ratio of their kinetic energies, TA/TB is: A and B and B is in a circular orbit of radius 2R around the [...]
A straight rod of length L extends from x=a to x=L +a. The gravitational force is exerted on a point mass ‘m’ at x=0, if the mass per unit length of the rod is A+Bx^2 is given by.
19
Sep
A straight rod of length L extends from x=a to x=L +a. The gravitational force is exerted on a point mass ‘m’ at x=0, if the mass per unit length of the rod is A+Bx^2 is given by. A straight rod of length L extends from x=a to x=L +a. The gravitational force is exerted [...]