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3 years ago

A tow truck exerts a force of 3000 N on a car, accelerating it at 2 m/s2. What is the mass of the car?

Physics

2 answers:

VARVARA [1.3K]3 years ago

5 0

The answer is <span>C. 3000 kg.</span>

Vlad1618 [11]3 years ago

5 0

Answer:

Mass, m = 1500 kg

Explanation:

Given that,

Force acting on the truck, F = 3000 N

Acceleration of the truck, $a=2\ m/s^2$

Let m is the mass of the truck. It can be calculated using second equation of motion as

F = m × a

$m=\dfrac{F}{a}$

$m=\dfrac{3000}{2}$

m = 1500 kg

So, the mass of the truck is 1500 kg. Hence, this is the required solution.

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The engine of a 1520-kg automobile has a power rating of 75 kW. Determine the time required to accelerate this car from rest to

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Answer:

t=15.68 s

Explanation:

Given that

m = 1520 kg

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Power ,P = F .v

F=force

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v=27.77 m/s

75 x 1000 = F x 27.77

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