A motorcar of mass kg is moving along a straight line with a uniform velocity of km/h. Its velocity is slowed down to km/h in s by an unbalanced external force. Calculate the acceleration and change in momentum. Also calculate the magnitude of the force required?
Step 1:Given data
Mass of the motor car,
The initial velocity of the motor car,=
The final velocity of the motor car,
Time taken,
Step 2: Determine the change in momentum
By using the momentum formula,
Step 3: Calculate the acceleration and magnitude of the force
By using the acceleration formula,
Let's find the magnitude of force,
Thus, the acceleration, change in momentum and the magnitude of the force is .