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Alex17521 [72]
3 years ago
5

A 2200 kg SUV traveling at 23.9 m/s can be stopped in 0.16 s if it hits a concrete wall. Assume that a 60 kg person was in the c

ar when it hir the wall. What is the average force exerted on the person
Physics
1 answer:
Jlenok [28]3 years ago
4 0

Answer:

8962.5 N

Explanation:

From fundamental kinematics equations, acceleration, a is given by a=\frac {v-u}{t} where v is final velocity, u is initial velocity and t is time

We also know that force is a product of mass and acceleration of an object and substituting a=\frac {v-u}{t}  in the formula F=ma we obtain

F=ma=m\frac {v-u}{t}  where m is the mass of the body

F=60\times\frac {0-23.9}{0.16}=-8962.5 N

Therefore, the force is 8962.5 N

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A fan cart with the fan set to high rolled across the floor. The cart's speeds with the fan on high are shown below. If the fan
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Answer:

Speed of cart's might be less than the high speed after 5 seconds.

Explanation:

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Answer:

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