Question
Physics Question on laws of motion
A trolley of mass 20kg is attached to a block of mass 4kg by a massless string passing over a frictionless pulley as shown in the figure. If the coefficient of kinetic friction between trolley and the surface is 0.02, then the acceleration of the trolley and block system is (Takeg=10ms−2)
A
1m s−2
B
2m s−2
C
1.5m s−2
D
2.5m s−2
Answer
1.5m s−2
Explanation