The driver of the car of exercises 11 and 12 lets up on the
accelerator, reducing the drive force to only 100 newtons. All other forces
remain unchanged. Find the net force on the car, the acceleration of the car,
and the direction of both.
Answer:
Now the drive force is smaller than the resistive force, and therefore there
is a
net force in the backward direction. Its magnitude is = (500 - 100) N = 400 N.
The acceleration is
The direction of both net force and acceleration is in the backward direction
- the car is slowing down.