Frictional Force
Trending Questions
Q.
A stone of 1 kg is thrown with a velocity of 20 ms−1 across the frozen surface of a lake and comes to rest after travelling a distance of 50 m. What is the force of friction between the stone and the ice?
3N
- There is no friction between stone and ice
5N
4N
Q. Why can't we walk on a frictionless surface.
Q. The rear of buses and trucks are provided with double wheels (tyres) or even more. This is provided in order to:
- Increase pressure on ground
- Increase friction for efficient braking
- Reduce friction
- Decrease pressure on ground
Q.
A stone of 1 kg is thrown with a velocity of 20ms across the frozen surface of a lake and comes to rest after travelling a distance of 50 m. What is the force of friction between the stone and the ice?
5N
3N
- There is no friction between stone and ice
4N
Q. Name the factors that affect the rurning effect of a body