Question

Figure shows a smooth inclined plane of inclination q fixed in a car. A sphere is set in pure rolling on the incline. For what value of 'a' (the acceleration of car in horizontal direction) the sphere will continue pure rolling ?

• A. gcosq
• B. g sin q
• C. g cot q
• D. g tan q

Answer 1

Answer: (D)

g tan q

Answer 2

The sphere will continue pure rolling if

mg cos q = mg sin q

or a = g tan q