force of 40 newton is responsible of motion of body governed by the equation S=2t+2t^2 s
where as in metres and 't' in seconds the momentum of body at 2 seconds
Answers
s=2t+2t^2
v=ds/dt=2+4t
a=0+4=4
F=40N
F=ma
m=40/4=10
momentum= mv
here,
v=2+4t=2+8=10 sec
momentum=10×10=100
I hope this helps ( ╹▽╹ )
ANSWER.
100 Kg m/s .
STEP FOR SOLVING.
GIVEN :-
- S = 2t + t^2
- F = 40 N
- t =2 SEC
- P = ?
- a = 4 M/S^2 .
as ,
from Newton's second law of motion .
F = M * A
M = F / A
= 40/4
=10 KG
THEREFORE :-
V = 2 + 4 * t
=2 + 4 *2
=10 m/s
as momentum = mass into acc^n
P = m * v
P = 10 * 10
P = 100 Kg m/s