A constant force acting on a body of mass 3.0 kg changes its speed from 0.2m/s-¹ to 3.5 m s-¹ in 25 s. The direction of the motion of the body remains unchanged. What is the magnitude and direction of the force ?
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A constant force acting on a body of mass 3.0 kg changes its speed from 0.2m/s-¹ to 3.5 m s-¹ in 25 s. The direction of the motion of the body remains unchanged. What is the magnitude and direction of the force ?
Given :
- u = 2m/
- m = 3kg
- v = 3.5m/
- v = 25 s
To Find :
Calculation
Since ,
Therefore,
From formula
F = 3 × 0.06 = 0.18 N
Since , the applied force increases the speed of the body ,it acts in the direction of motion
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