A particle of mass 1 kg is projected upwards with velocity 60 m/s. Another particle of mass 2 kg is just deopper from a certain height. After 2 kg is just of the particles have colliided with ground, match the following [ Take g= 10 `m//s^(2)`]

A particle of mass 1 kg is projected upwards with velocity 60ms^(-1) . Another particle of mass 2kg is just dropped from a certain height. After 2s, match the following. [Take, g =10 ms^(-2)] {:("column1","column2"),("Accelertion of CM","P Zero"),("B Velocity of CM","Q 10 SI unit"),("C Displacement of CM","R 20 SI unit"),("-","S None"):}

A particle is projected from ground with velocity 40sqrt(2)m//s at 45^(@) . At time t=2s

A particle is projected vertically upwards from ground with velocity 10 m // s. Find the time taken by it to reach at the highest point ?

The particle of mass 1 kg is projected with velocity 20sqrt(2) m/s at 45^(@) with ground . When , the particle is at highest point (g=10 m//s^(2)) ,

A particle is projected from ground with velocity 20(sqrt2) m//s at 45^@ . At what time particle is at height 15 m from ground? (g = 10 m//s^2)

A body of mass 2 kg is dropped from rest from a height 20 m from the surface of Earth. The body hits the ground with velocity 10 m/s, then work done: (g=10m//s^(2))

A particle is projected upwards with velocity 40 m//s. Taking the value of g=10 m//s^2 and upward direction as positive, plot a-t,v-t and s-t graphs of the particle from the starting point till it further strikes the ground.

A body of mass 2 kg is projected upward from the surface of the ground at t = 0 with a velocity of 20 m//s . One second later a body B, also of mass 2 kg , is dropped from a height of 20m . If they collide elastically, then velocities just after collision are :-

A particle of mass 2 kg is projected vertically upward with a velocity of 20 m/s. It attains maximum height of 17 m. The loss in mechanical energy due to air drag is ( g = 10 ms^-2)

Comprehension # 5 One particle of mass 1 kg is moving along positive x-axis with velocity 3 m//s . Another particle of mass 2 kg is moving along y-axis with 6 m//s . At time t = 0, 1 kg mass is at (3m, 0) and 2 kg at (0, 9m), x - y plane is the horizontal plane. (Surface is smooth for question 1 and rough for question 2 and 3) The centre of mass of the two particles is moving in a straight line for which equation is :