An object of mass 10 kg, moving with a velocity of 5.6 ms−1 on a surface, comes to rest after traveling a distance of 16 m. Then
a. coefficient of friction is 0.1
b. work-done against the friction is 156.8 J
c. retardation of the body is 8.4 ms−2.
d. the block comes to rest in 1 sec