Question

A block of mass `10kg` is placed on a rough horizontal surface having coefficient of friction `mu=0.5` . If a horizontal force of `100N` is acting on it, then acceleration of the will be.
A. `0.5m//s^(2)`
B. `5m//s^(2)`
C. `10m//s^(2)`
D. `15m//s^(2)`

Answer 1

Correct Answer - B
`a=(Applied fo rce-Ki n etic f riction)/(Mass)`
`=(100-0.5xx10xx10)/(10)=5m//s^(2)`