Question

A2. Two persons manage to push a motorcar of mass 1200 kg at a uniform velocity along a
level road. The same motorcar can be pushed by three persons to produce an acceleration of 0.2 m s-2. With what force does each person push the motorcar ? (Assume that all persons push the motorcar with the same muscular
effort.)​

Answer 1

Answer:

Mass of the motor car = 1200 kg

Only two persons manage to push the car. Hence, the acceleration acquired by the car is given by the third person alone.

Acceleration produced by the car, when it is pushed by the third person, a = 0.2 m/s2

Find out

Force exerted by each person to push the cart

Solution

When the third person starts pushing the car, the acceleration (a) is 0.2 ms-2.

Therefore, the force applied by the third person (F = ma) is given by:

F = 1200kg × 0.2 ms-2 = 240N

The force applied by the third person on the car is 240 N. Since all 3 people push with the same muscular effort, the force applied by each person on the car is 240 N.

Explanation:

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Answer 2

Answer:

Given

GivenMass of the motor car = 1200 kg

GivenMass of the motor car = 1200 kgOnly two persons manage to push the car. Hence, the acceleration acquired by the car is given by the third person alone.

GivenMass of the motor car = 1200 kgOnly two persons manage to push the car. Hence, the acceleration acquired by the car is given by the third person alone.Acceleration produced by the car, when it is pushed by the third person, a = 0.2 m/s2

GivenMass of the motor car = 1200 kgOnly two persons manage to push the car. Hence, the acceleration acquired by the car is given by the third person alone.Acceleration produced by the car, when it is pushed by the third person, a = 0.2 m/s2Find out

GivenMass of the motor car = 1200 kgOnly two persons manage to push the car. Hence, the acceleration acquired by the car is given by the third person alone.Acceleration produced by the car, when it is pushed by the third person, a = 0.2 m/s2Find outForce exerted by each person to push the cart

GivenMass of the motor car = 1200 kgOnly two persons manage to push the car. Hence, the acceleration acquired by the car is given by the third person alone.Acceleration produced by the car, when it is pushed by the third person, a = 0.2 m/s2Find outForce exerted by each person to push the cartSolution

GivenMass of the motor car = 1200 kgOnly two persons manage to push the car. Hence, the acceleration acquired by the car is given by the third person alone.Acceleration produced by the car, when it is pushed by the third person, a = 0.2 m/s2Find outForce exerted by each person to push the cartSolutionWhen the third person starts pushing the car, the acceleration (a) is 0.2 ms-2.

GivenMass of the motor car = 1200 kgOnly two persons manage to push the car. Hence, the acceleration acquired by the car is given by the third person alone.Acceleration produced by the car, when it is pushed by the third person, a = 0.2 m/s2Find outForce exerted by each person to push the cartSolutionWhen the third person starts pushing the car, the acceleration (a) is 0.2 ms-2.Therefore, the force applied by the third person (F = ma) is given by:

GivenMass of the motor car = 1200 kgOnly two persons manage to push the car. Hence, the acceleration acquired by the car is given by the third person alone.Acceleration produced by the car, when it is pushed by the third person, a = 0.2 m/s2Find outForce exerted by each person to push the cartSolutionWhen the third person starts pushing the car, the acceleration (a) is 0.2 ms-2.Therefore, the force applied by the third person (F = ma) is given by:F = 1200kg × 0.2 ms-2 = 240N

GivenMass of the motor car = 1200 kgOnly two persons manage to push the car. Hence, the acceleration acquired by the car is given by the third person alone.Acceleration produced by the car, when it is pushed by the third person, a = 0.2 m/s2Find outForce exerted by each person to push the cartSolutionWhen the third person starts pushing the car, the acceleration (a) is 0.2 ms-2.Therefore, the force applied by the third person (F = ma) is given by:F = 1200kg × 0.2 ms-2 = 240NThe force applied by the third person on the car is 240 N. Since all 3 people push with the same muscular effort, the force applied by each person on the car is 240 N.