Question

(12) A particle of mass 2 kg
is moving. It's displacement
given by
x = 3t³ +2t² + 3t. Find the force
force acting on the body at t =1 second.

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Answer 1

Answer:

44N

Explanation:

x=3t3+2t2+3t

v=dx/dt=9t2+4t+3

a=dv/dt=18t+4

a=18t+4

at t=1s,

a=22 m/s2

F=ma

so,

F=2×22

F=44N