Question

if an object moving with velocity vm/s comes to rest abter applying brakes in t seconds. state the distance covered by it. ​

Answer 1

Explanation:

See final velocity is 0

Intial velocity is vm/s

Accleration=(0-vm/s)/s=-vm/s²

we know s=ut+1/2at²

putting values s=vm/s/s+1/2(-vm/s²)

therefore by simply fy we get=(2s²vm-vm)/2s⁴