Question

linear momentum (P) of a moving object varies

with time(t) is given as 3 2 Ptt = ++ (2 3 2) kg m/s

(where t is in second), then force acting on the

object at t = 1 s will be

6N
12N
9 N
18 N
​

Answer 1

Answer:

Given,

p=2+3t

2

From Newton's second law,

F=

dt

dp

F=

dt

d(2+3t

2

)

F=0+6t=6t

At t=3s

F=6×3=18N

The correct option is A.

How satisfied