JEE MainPhysicsCenter of MassMCQ+4 / −1
Two billiard balls of equal mass 30g strike a rigid wall with same speed of 108 kmph (as shown) but at different angles. If the balls get reflected with the same speed then the ratio of the magnitude of impulses imparted to ball 'a' and ball 'b' by the wall along 'X' direction is : 

- A1 : 1
- B: 1
- C2 : 1
- D1 :
More from Center of Mass
- A body of mass 2 kg moving with a speed of 4 m/s. makes an elastic collision with another body at rest and continues to move in the original direction but with one fourth of its initial peed. The speed of the two body centre of mass is …2021 · Numerical
- Given below are two statements : one is labelled as Assertion A and the other is labelled as Reason R. Assertion A : Body 'P' having mass M moving with speed 'u' has head-on collision elastically with another body 'Q' having mass 'm'…2021 · MCQ
- A bullet of 10 g, moving with velocity v, collides head-on with the stationary bob of a pendulum and recoils with velocity 100 m/s. The length of the pendulum is 0.5 m and mass of the bob is 1 kg. The minimum value of v = … Includes diagram2021 · Numerical
- Three objects A, B and C are kept in a straight line on a frictionless horizontal surface. The masses of A, B and C are m, 2m and 2m respectively. A moves towards B with a speed of 9 m/s and makes an elastic collision with it. Thereafter B… Includes diagram2021 · MCQ
- A body of mass M moving at speed V0 collides elastically with a mass 'm' at rest. After the collision, the two masses move at angles 1 and 2 with respect to the initial direction of motion of the body of mass M. The…2021 · MCQ
- A particle of mass m with an initial velocity collides perfectly elastically with a mass 3 m at rest. It moves with a velocity after collision, then, v is given by :2020 · MCQ
- A square shaped hole of side l = is carved out at a distance d = from the centre ‘O’ of a uniform circular disk of radius a. If the distance of the centre of mass of the remaining portion form O is $- {a \over… Includes diagram2020 · Numerical
- A particle of mass m is moving along the x-axis with initial velocity . It collides elastically with a particle of mass 10 m at rest and then moves with half its initial kinetic energy (see figure). If … Includes diagram2020 · Numerical