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loris [4]
3 years ago
7

The car has a mass of 22,000Kg. Calculate the force needed to stop the car.

Physics
1 answer:
d1i1m1o1n [39]3 years ago
6 0

Answer:

Momentum of car = 1200 kg * 10 m/s = 12000 kgm/s Momentum = Force * time 12000 kgm/s = Force * 20s Force = 600 N

Explanation:

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The power developed is 500 W ( to the nearest Watt)

Power(P) is the rate at which work is done. Work done (W) is the product of the force applied on the object and the displacement (s) made by the point of application of the force.

P = \frac{W}{t}

W= F*s

Therefore,

P=\frac{F*s}{t}

Substitute the given values of force , displacement and time

F = 124 N,s = 32.0 m,t = 8.0 s

P =\frac{W*s}{t} =\frac{124N*22.0s}{8.0s} =496 W

Thus the Power can be rounded off to the nearest value of 500 W

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3 years ago
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Answer:

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Tree topology.

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2 years ago
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When a vehicle travels at a steady speed the driving force and the
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Answer:

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A chef places an open sack of flour on a kitchen scale. The scale reading of
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Answer:

Explanation:

Given

Initial reading on scale =40 N

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This net downward force is the resultant of earth graviational pull and the applied upward force.

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