GROUP 1 (3 Problems)
1. A student runs from rest and reaches a speed of 8 m/s in 4 seconds.
a. Find the acceleration.
b. Write the formula used.
2. A ball moves in a circular path with a speed of 5 m/s and a radius of 5 m.
a. Calculate the centripetal acceleration.
b. State its direction.
3. A 2 kg object moves in a circle of radius 2 m at a speed of 4 m/s.
a. Calculate the centripetal force.
b. Name the formula used.
GROUP 2 (3 Problems)
4. A motorcycle slows down from 14 m/s to 6 m/s in 4 seconds.
a. Calculate the acceleration.
b. Is the acceleration positive or negative?
5. A passenger sits near the edge of a rotating carnival ride.
a. Does the passenger experience acceleration?
b. Why or why not?
6. A 6 kg box accelerates at 3 m/s².
a. Find the force acting on the box.
GROUP 3 (3 Problems)
7. An object moves with constant acceleration.
a. What happens to its velocity over time?
b. Give one real-life example.
8. Two objects move in circles with the same radius, but one moves faster.
a. Which object has greater centripetal acceleration?
b. Explain briefly.
9. A car turns along a circular road.
a. What provides the centripetal force?
b. What happens if this force is suddenly removed?
GROUP 4 (3 Problems)
10.A net force of 15 N acts on a 3 kg object.
a. Calculate the acceleration.
11.If the mass of an object moving in a circle increases while speed stays the same,
a. What happens to the centripetal force?
b. Why?
12.A runner completes one lap around a circular track of radius 7 m in 14 seconds.
a. Find the runner’s speed.
GROUP 5 (3 Problems)
13.Two objects experience the same force, but one has a larger mass.
a. Which object accelerates more?
b. Explain briefly.
14.An object moves in a circle at constant speed.
a. Is its velocity constant?
b. Why?
15.Two objects move in circular paths. One has a larger radius but the same time per revolution.
a. Which object has greater speed?
b. Explain briefly.
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