Questions
A uniform solid sphere rolls on a horizontal surface at 20 m/s. It then rolls up an incline having an angle of inclination of 30o with the Horizontal. If the friction losses are negligible, the value of height h above the ground where the ball stops is
detailed solution
Correct option is B
Applying the law of conservation of energy, we have12mv2+12Iω2=mghor 12mv2+1225mr2ω2=mghor 12mv2+15mv2=mghh=710×v2g=7×(20)210×9⋅8=28⋅6mTalk to our academic expert!
Similar Questions
A uniform thin rod of length l and mass m is hinged at a distance l/4 from one of the end and released from horizontal position as shown in Fig. The angular velocity of the rod as it passes the vertical position is
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