A force of $50 N$ is required to push a car on a level road with constant speed of $10 m / s$ . The mass of the car is $500 k g$ . What force should be applied to make the car accelerate at $2 m / s^{2}$ ?

1100 N

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1050 N

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1000 N

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1500 N

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Solution

The correct option is B $1050 N$
Given,
Frictional force, $f = 50 N$
Velocity, $v = 10 m / s$
Mass of the car, $m = 500 k g$
Acceleration of the car, $a = 2 m / s^{2}$
By applying 2nd Newtons law,
$F - f = m a$
$F = f + m a$
$F = 50 + 500 \times 2$
$F = 1050 N$
The correct option is B.

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A force of 50 N is required to push a car on a level road with constant speed of 10 m/s . The mass of the car is 500 kg . What force should be applied to make the car accelerate at 2 m/s2 ?

The correct option is B 1050 NGiven,Frictional force, f=50NVelocity, v=10m/sMass of the car, m=500kgAcceleration of the car, a=2m/s2By applying 2nd Newtons law,F−f=maF=f+maF=50+500×2F=1050NThe correct option is B.

A force of $50 N$ is required to push a car on a level road with constant speed of $10 m / s$ . The mass of the car is $500 k g$ . What force should be applied to make the car accelerate at $2 m / s^{2}$ ?

The correct option is B $1050 N$
Given,
Frictional force, $f = 50 N$
Velocity, $v = 10 m / s$
Mass of the car, $m = 500 k g$
Acceleration of the car, $a = 2 m / s^{2}$
By applying 2nd Newtons law,
$F - f = m a$
$F = f + m a$
$F = 50 + 500 \times 2$
$F = 1050 N$
The correct option is B.