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TS EAMCET · Physics · Rotational Motion

A solid spherical ball rolls on a horizontal surface at 10 m s-1 and continues to roll up on an inclined surface as shown in the figure. If the mass of the ball is 11 kg and frictional losses are negligible, the value of h, where the ball stops and starts rolling down the inclination is (Assume g=10 m s-2)

  1. A 8 m
  2. B 6 m
  3. C 7 m
  4. D 10 m
Verified Solution

Answer & Solution

Correct Answer

(C) 7 m

Step-by-step Solution

Detailed explanation

Given, Initial velocity of solid spherical ball is v=10 m s-1 Mass of ball rolling on the surface is m=11 kg Applying work energy theorem, W=∆KE Wg=KEf-KEi    ...1 Now, initial kinetic energy of spherical ball is Ki=12mv21+k2R2 And final…
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