Physics, asked by himanshu117g, 8 months ago

State Newton’s second law of motion and show that the first law of motion can be

mathematically stated from the mathematical expression for the second law of motion.

(b) A stone dropped from a window reaches the ground in 0.5 seconds (given g = 10 ms–2).

(i) Calculate the speed just before it hits the ground.

(ii) What is the average speed at t = 0.5 s?

(iii) Calculate the height of window from the ground.

Answers

Answered by Anonymous
29

Answer:

A) For a constant mass m, Newton's second law looks like: F = m * (V1 - V0) / (t1 - t0) The change in velocity divided by the change in time is the definition of the acceleration a. The second law then reduces to the more familiar product of a mass and an acceleration: F = m * a.

ii) F = ma

F = m(v-u)/t

Ft = mv-mu

Now, When F = 0 , v = u , this means that the object will remain at rest.

Answered by Anonymous
4

Explanation:

1Foot........................

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