Question

a body of mass 5 kg is moving with a uniform velocity if 19 m/s.it is acted bya force of 20 N.what will be its velicity after 1 sec.

Answer 1

Given, mass= 5kg Initial velocity= 19m/s Time=1sec Force = 20N , Final velocity= ? Therefore, acceleration = (v-u)/t (v-19)/1 = a As F =ma 20 = 5(v-19) From here, v =23m/s