Question

An object of mass 10 kg moves at a constant speed of 10m/s. A constant force then acts for 4 seconds on the object and gives it a speed of 2m/s in opposite direction. The acceleration produced is

Answer 1

Answer:

FBFBKJVSXBCNVYBJNHGCFDRXXFGHJKJNHBGVFCTRDXCTFVGYBHJNKMLMKJNUHBYGTFRFTYGVBHJN

Explanation:

Answer 2

Answer:

-2m/s^2

Explanation:

m=10kg,v=10m/s=const....means a=0

F=const,t=4s F on t gave v=2m/s in opposite direction....a=?

v-u/t = 2-10/4 = -8/4 = -2 m/s^2