Answer the following questions.
1) A truck that is stopped on the road has to be pushed hard to get into motion.
When the truck is moving a little, it can be moved faster with a smaller /less
push. Why?
Answers
Answer:
A truck that is stopped on the road has to be pushed hard to get into motion.
Explanation:
When we push a truck parked along the roadside, then the road implements a static friction force in the opposite direction of force implemented on the truck to oppose the motion of the truck. The static friction is flexible in nature, hence, the road allows only the required amount of friction force to keep the truck at rest. If we apply more force, the road applies more friction force. Hence the friction force cancels out the force applied.
Answer:
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It can be moved with a smaller force because it has crossed the static friction now it it have only the Kinetic friction which is low and second way we can say that the body is starred moving so no static force is required.
Explanation:
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Hope it helps you