Question

state Newtons Universal law of Gravitation. A stone is dropped from the top a 40m high tower. Calculate its speed afters 2s, also find the speed with which the stone strikes the ground (Take g =10 m/s2) ​

Answer 1

Answer:

Newton's law of universal gravitation states that every point mass in the universe attracts every other point mass with a force that is directly proportional to the product of their masses and inversely proportional to the square of the distance between them.

v=u-gt

v= -10×2= -20=20m/s {aprox.)

speed when it strike the ground  

v=√2gh

v=√2×10×40

v=√800

v=20√2m/s (approx)

Explanation:

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Answer 2

Answer:

in photo with full explanation