Answer:
The object displacement is 0 meters.
Explanation:
Because the expression for the object position as function of time is:

At t= 3.0=t2 seconds the x-position of the object is:


and at t=1.0=t1 seconds the x-position of the objects is:


The total displacement (
) of the object between t2 and t1 is the difference between x(3.0s) and x(1.0s):


The displacement of the object is zero!!!
Answer:
The work done will be 
Explanation:
The work equation is given by:

Where:
F is the force due to gravity (weight = mg)
x is the length of the ramp (3 m)
Now, the force acting here is the component of weight in the ramp direction, so it will be:

Therefore, the work done will be:



I hope it helps you!
Answer:
270°
Explanation:
A full rotation is 360° so half (2/4) of it is 180° meaning a quarter (1/4) is 90°
So you can do 90+90+90=270
or 180+90=270
200 + 175 + 125 + 100 = 600
Answer:
elastic potential energy
You input potential (stored) energy into the rubber band system when you stretched the rubber band back. Because it is an elastic system, this kind of potential energy is specifically called elastic potential energy.
Explanation: