Question

from the following graph of an object of mass 20 kg.
momentum after 10 sec ,​

Answer 1

Answer:

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Explanation:

Given,

Mass of the object, m=20 kg

Initial velocity, u=2 ms−1

Final velocity, v=4 ms−1

Time taken, t=1 s

Acceleration, a

Using Newton's first equation of motion,

v=u+at

⟹a=tv−u

a=14−2

a=2 ms−2

We know,

Force=mass×acceleration

F=ma

F=20×2

F=40N

The object will move in the same direction of motion.