Question
Asked Dec 9, 2019
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142. What is the magnitude of the net force acting
on a 2.0 × 10³-kilogram car as it accelerates
from rest to a speed of 15 meters per second in
5.0 seconds?
to
(1) 6.0 × 10³ N
(2) 2.0 × 10ª N
(3) 3.0 × 10ªN
(4) 6.0 × 10ª N
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142. What is the magnitude of the net force acting on a 2.0 × 10³-kilogram car as it accelerates from rest to a speed of 15 meters per second in 5.0 seconds? to (1) 6.0 × 10³ N (2) 2.0 × 10ª N (3) 3.0 × 10ªN (4) 6.0 × 10ª N

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Step 1

Given,

The mass of the car, m = 2×103kg

The initial velocity of the car, vi = 0m/s

The final velocity of the car, vf = 15m/s

Step 2

The acceleration of the car is

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Ve -Vị a = 15m/s - Om/s 5s = 3m/s?

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Step 3

The net force acting ...

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F= ma =(2x10°kg)(3m/s²) = 6×10°N

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Tagged in

Science

Physics

Newtons Laws of Motion

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