Answer:
Explanation:
Given
Mass of car
Force applied
time period
Acceleration associated with car
Acceleration is the change in velocity w.r.t time
thus, the change in velocity is
Answer: the reaction force is large.
Explanation:
From Newton's third law, we know that for every action, there is equal and opposite reaction.
Since, a large amount of high speed of water is ejecting out from hose. The high momentum due to large speed in short duration of time would cause water to eject out with great force. The reaction force would act on the firefighter holding the hose. An equal amount of large force would act on him. Thus, it is difficult for a firefighter to hold a hose that ejects large amounts of high speed water.
Answer:
The quantities which do not depend on other quantities is called fundamental qiantity. For eg; time,current,lwngth etc...
Celsius is the one that is most used around the world