3 years ago

Plz answer these questions u don't have to do 4,5,6,or 7 just 1,2, and 3 plz plz plz

1 answer:

7 0

Hey honey i know you want help but something you have to do on your own

the questions are based on the lesson or the book but just read and i promise youll find your answer

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Calculate the centripetal force acting on a 925 kg car as it rounds an unbanked curve with a radius of 75 m at a speed of 22 m/s

igomit [66]

Since f=m(v^2/r),or fnet is equal to ma.

force = unknown
velocity=22m/s
radius=75m

f=m(v^2/r)
f=925(22^2/75)
f=5969.333N

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3 years ago

explain how a large force is exerted on a passenger in a vehicle in the event of a car crash and how this can be reduced.

xeze [42]

Using idea of conservation of impulse-momentum theorem, the instantaneous velocity times mass is equal to force times the change in time.

mv = Ft

To reduce the force, decrease the velocity and mass. You can also extend the time of the collision. This is why cars collapse on impact. They were design that way to reduce the force on the car and the passenger.

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3 years ago

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Elena-2011 [213]

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If you do 1500 J of work hoisting a 20 kg bale of hay , to what height did you lift it

strojnjashka [21]

Explanation:

W = PE

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3 years ago

Why do most carnivores live in forest? given reason

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$\huge\purple{Hi!}$

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