Advertisements
Advertisements
प्रश्न
Why is it difficult to walk on a slippery road ?
Advertisements
उत्तर
On the slippery ground, the friction is much less and we cannot exert a backward action force on it which would produce a forward reaction force on us. Hence, it becomes difficult to walk on a slippery road.
APPEARS IN
संबंधित प्रश्न
A stone of 1 kg is thrown with a velocity of 20 m s−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?
According to the third law of motion, when we push on an object, the object pushes back on us with an equal and opposite force. If the object is a massive truck parked along the roadside, it will probably not move. A student justifies this by answering that the two opposite and equal forces cancel each other. Comment on this logic and explain why the truck does not move.
Fill in the following blanks with suitable words :
Forces in a Newton’s third law pair have equal _____________ but act in opposite _____________.
If action is always equal to reaction, explain why a cart pulled by a horse can be moved.
Do action and reaction act on the same body or different bodies ? How are they related in magnitude and direction ? Are they simultaneous or not ?
Explain why, a runner presses the ground with his feet before he starts his run.
Name the law involved in the following situation :
when person A standing on roller skates pushes another person B (also standing on roller skates) and makes him move to the right side, then the person A himself gets moved to the left side by an equal distance.
Explain why, when a fireman directs a powerful stream of water on a fire from a hose pipe, the hose pipe tends to go backward.
Give a scientific reason.
Even though the magnitudes of action force and reaction forces are equal and their directions are opposite, their effects do not get cancelled.
In a hose pipe ejecting water, what is the reaction force?
