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IrinaK [193]
4 years ago
14

A child sits at the top of a slide at a playground. He wiggles forward slightly, and then slide all the way down with no further

effort. Explain the source of the force acting on the child, and how you would calculate the work being done.
Physics
1 answer:
polet [3.4K]4 years ago
5 0

Answer:

force of gravity

Explanation:

The force of gravity is following up on the child, making him  slide all the way down with no further effort.

the work being done on him is the distance he slides vertically times the force applied, which is the height of the slide ( meters), times his weight (newtons)

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nydimaria [60]

Answer:

130m/s^2 and 1.22s

Explanation:

From V = u+at

Where V, u, a, and t are the final velocity, initial velocity, acceleration and time respectively.

v = 6.75m/s

u = 3.5m/s

t = 0.250secs

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6.75-3.5 = 0.250a

3.25=0.250a

Divide both sides by 0.250

3.25/0.250= 0.250a/0.250

a = 130m/s^2

The acceleration of the will be 130 meter per second

Question 2

Speed = distance/time

Given that speed= 4.25m/s

Distance = 5.2m and time = ?

4.25m/s = 5.2m/t

Cross multiply

4.25×t = 5.2

Make t the subject by dividing both sides by 4.25

4.25t/4.25 = 5.2/4.25

t = 1.22s

Hence the time taken will be 1.22 seconds

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