5m
Explanation:
Given parameters:
Energy = 35J
Force on object = 7N
Unknown:
Distance moved = ?
Solution:
The energy on the car will cause the car to do work . When work is done, a force moves a body in particular distance. We can see that energy and force are related:
Energy = force x distance
Distance = 
Inputting the parameters:
Distance =
= 5m
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Answer:
k_2 =3826.08 J
K_1 = 4973.91 J
Explanation:
from conservation of momentum principle

we know that kinetic energy is given as


we have
, 
therefore 
now


k_2 =3826.08 J
K_1 = 4973.91 J
Answer:
I know it is the first one but I think it is the third one too but you would have to double check me
The formula should be (2πr)/T. r=radius T=time. if time is in seconds the formula would look like this