A mass, M, on an inclined ramp, is connected to a rope with tension T. [theta is

Question

A mass, M, on an inclined ramp, is connected to a rope with tension T. [theta is always less than 45 degree.] The non-zero coefficients of kinetic and static friction are u_k and u_s respectively. Assume that u_s > u_k. Match each statement with the correct response. (If the first answer is A, and the rest are G, answer AGGGG) A) increases C) stays the same E) greater than B) decreases D) equal to F) less than G) Need more information 1) If the block is moving up the ramp at constant speed, T is _________ the block's weight component along the ramp. 2) If the block is moving down the ramp and T=m*gsin(theta) + u_s*m*g*cos(theta), the block's speed __________. 3) If the block is moving down the ramp and T=m*g*sin(theta), the block's speed ______. 4) If the block is moving up the ramp and T=m*g*sin(theta) + u_s*m*g*cos(theta), the block's speed ______. 5) If theta = 30 degree, the block is stationary, and u_s

Explanation / Answer

(1) ans

if the block is moving the ramp at constant speed T is stay same

(2)ans

lessthan because the tension in the string T=mgsin(theta)

(3) the block moves downwards speed of the block is increases because acceleration due to gravity is positive

(4) decreases because acceleration due to gravity is negative

(5) less than

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