Answer to Question #143135 in Physics for Bernita

Question

A car of mass 800kg travels at a constant speed along a straight horizontal road. It's engine is producing a driving force of 400N.

I. What is the resistance to its motion

Later the driving force is increased to 1000N

II. Find the acceleration of the car given the resistance force remains the same

2. A box of mass 10kg is being lifted by a rope. The acceleration is 0.5m/s^2 upwards.

I. Draw a diagram showing the forces acting on the box and the direction of its acceleration.

II. Write down the equation of the box

III. Find the tension in the rope (g=10m/s^2)

Answer 1

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