What force will change the velocity of a body of mass 1 kg from 20 m s-1 to 30 m s-1 in two seconds?
A. 1N
B. 5 N
C. 10 N
D. 25 N
Answer:B
What force will change the velocity of a body of mass 1 kg from 20 m s-1 to 30 m s-1 in two seconds?
A. 1N B. 5 N C. 10 N D. 25 N