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Center of Mass question

2023 · 31 Jan · Shift 1 · Q57
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  5. /2023 · 31 Jan · Shift 1 · Q57

Center of Mass question

2023 · 31 Jan · Shift 1 · Q57

JEE MainPhysicsCenter of MassMCQ+4 / −1
100 balls each of mass m\mathrm{m}m moving with speed vvv simultaneously strike a wall normally and reflected back with same speed, in time t s\mathrm{t ~s}t s. The total force exerted by the balls on the wall is
  1. A
    200mvt\frac{200 m v}{t}t200mv​
  2. B
    100mvt\frac{100 m v}{t}t100mv​
  3. C
    mv100t\frac{m v}{100 t}100tmv​
  4. D
    200mvt200 m v t200mvt
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