Question

plss tell...................​

Answer 1

Answer:

19 kg m/s

Explanation:

F = dp/dt

dp = change in momentum = F dt

= ( 4t^3 + 3t^2 - 2t ) dt, limits 1 to 2 sec

= t^4 + t^3 - t^2, limits 1 to 2

= 19 kg m/s