Question

. Calculate the unbalanced force acting on a 0.50 kg toy rocket that accelerates at a constant rate with a velocity of 20 m/s (up) to 45 m/s (up) in 0.7 s.

Answer 1

17.85N

Step-by-step explanation:

Given data

m= 0.5kg

u= 20m/s

v= 45m/s

t= 0.7second

From

F= mΔv/t

substitute

F=0.5*(45-20)/0.7

F=0.5*25/0.7

F=12.5/0.7

F=17.85

Hence the force is 17.85N