Question

A horizontal force of 6 N acts on a mass of 1 kg kept at rest on a frictionless surface, it acquires a
velocity of 30 m/sec in time t. The value of t is
(A) 26 sec
(B) 6 sec
(C) 5 sec
(D) 2 sec​

Answer 1

Answer:

answer is c) 5 sec

Explanation:

force=6N

mass =1kg

initial velocity(u)=0

final velocity(v)=30m/s

we know that

F=ma

then,

6=1×(30-0)/t

6= 1×30/t

6=30/t

t=30/6

t=5

therefore,time taken= 5 sec