Answer:
Explanation:
Newton's First law of motion: An object is in motion, it remains in motion or an object is at rest it remains at rest until and unless an external force is not applied on the body.
For example, a car is at rest, it remains at rest as there is no external force is applied on the body.
Newton's Second law of motion: The rate of change of momentum of the object is directly proportional to the force applied on the object.
Force proportional to the rate of change in momentum.
Newton's Third law of motion: For every action, there is an equal and opposite reaction.
Action and reaction force acting on two different bodies.
It is very large in size, I don’t have an exact number but i believe it is over the 1,000s.
A microwave uses heat waves that keeps in side the machine to heat up the cup of water
Hope this helps :)
Answer:
Option 4 is correct ,
Explanation:
By the question,
Time (t) = 5 sec
accelation (a) = 3m/s^2
final velocity (Vf) = 28m/s
we know that ,
so, doing cross multiplication , we get:-
Answer: The speed of the student is 5.45km/hr.
Explanation: The important concept here is to convert 33 minutes to hours by diving by 60 since one hour is equal to 60 minutes to get 0.55hr
Then velocity is equal to distance over time.
v=d/t
v= 3km/0.55hr
v=5.45km/hr