Question

An 18. A 10 g moving body is acted upon by a force of 10 N for 3 us. Compute the impulse and the change in velocity of the body.​

Answer 1

Answer:

6×10−3ms−1

Explanation:

 F=10N,t=3μs

=3×10−6s;

M=5g=5×10−3kg

Now, impulse =Ft=10×3×10−6

=3×10−5Ns

Also, impulse = change in momentum

=Mv2−Mv1

=M(v2−v1)

∴(v2−v1)=Mimpulse=5×10−33×10−5

=6×10−3ms−1