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ch4aika [34]
3 years ago
14

How much force is required to accelerate a 5 kg object at 5 m/s^2?

Physics
1 answer:
kramer3 years ago
3 0

Answer:25n

Explanation:

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A ball is tossed with a velocity of 10 m/s directed vertically upward from a window located 20 m above the ground. Determine the
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Explanation:

Given

Initial velocity of ball u=10\ m/s

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Using Equation of motion

y=ut+\frac{1}{2}at^2

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t=time

a=acceleration

As ball is already is at a height of 20 m so

Y=ut+\frac{1}{2}at^2+20

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Y=-4.9t^2+10t+20

(b)highest point is obtained at v=0

v^2-u^2=2as

where

v=final velocity

u=initial velocity

a=acceleration

s=displacement

(0)-10^2=2\times (-9.8)\times s

s=\frac{100}{19.6}

s=5.102\ m

Highest Point will be s+20=25.102\ m

(c)Time taken when the ball hit the ground i.e. at Y=0

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t=3.28\ s

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v=22.181\ m/s

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