Question

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

Answer 1

Answer:

v=u+at

-2=10+a4

a=-3 m/s2

force =ma =10*-3 = -30N

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