F=MA exercises

1. A car weighs 1000kg, you can push it .05 m/s², how much force (F) are you applying to the car? Here we use F=MA:

F= MA= 1000kg x 0.5 m/s2 = 50 m/s2

2. Another car weighs 2000kg, you can push it .05 m/s², how much force are you applying to the car? Again use F=MA.

F= MA= 2000kg x 0.5 m/s2 = 100m/s2

3. A force of 5000 newtons is applied to a 1200 kg car at rest. What is its acceleration? (m/s²)

A= M/S2= 5000n/1200kg = A: 4.16

4. A 10kg body has an acceleration of 2 m/s². Find the net force (F) acting on the body.

F= MA= 10kg x 2 m/s2 = 20 m/s2

5. An empty truck with a mass of 2500kg has an engine that will accelerate at a rate of 1.5 m/s². What will the force be if the truck is carrying an additional load of 1500kg?

F= MA= 2500kg + 1500kg = 5000kg x 1.5 m/s2 = 7500 m/s2

6. A force of 700 newtons is applied to a 600 kg bowling ball. What is the acceleration of the bowling ball once the force is applied?

A= F/M = 700n/600kg = 1.16

7. A baseball weighs 2.5 kg, after it is hit with a bat it has an acceleration of 36 m/s². How much force was used to make the ball travel that fast?

F= MA= 2.5kg x 36 m/s2 = 90 m/s2

8. During a car crash a bus that weighs 5000kg is hit by a semi truck, the bus moves at a speed of 8m/s². How much force was used to make the bus travel that fast?

F= MA= 5000kg x 8 m/s2 = 40,000 m/s2

9. Mr. G (80kg) is sitting in his favorite desk chair having fallen asleep from all the hard work he does; a disobedient student pushes Mr. G down the hall with an acceleration of 10 m/s². How much force would the student have to use to get Mr. G to move that fast?

F= MA= 80kg x 10 m/s2 = 800 m/s2

10. An old mousetrap car is sprung into motion and weighs 1000 kg. It is pulling a trailer with 1750 kg on it, travels with an acceleration of 20 m/s². What was the force of the mousetrap that enabled the car to move that fast?

F= MA= 1000kg + 1750kg = 2750kg x 20 m/s2 = 55,000 m/s2