Answer:
and 
Explanation:
The first sentence of this question is not explanatory enough. However, I'll assume the force to be 15N

to the horizontal
Required
Solve for the x and y components
Since the given angle is to the horizontal, the x and y coordinates are calculated using the following illustrations.
---- y component
---- x component
Calculating the y component.
Substitute 15 for Force and 36.7 for 
becomes

Make y the subject



Calculating the x component.
Substitute 15 for Force and 36.7 for 
becomes

Make y the subject



<em>Hence, the x and y components of the force are: 8.964N and 12.027N respectively.</em>
Work = (force) x (distance)
Each time she lifts the weight, she does
(550 N) x (0.5 m) = 275 joules of work against gravity.
Each time she lets the bar down gently, gravity does
(550 N) x (0.5 m) = 275 joules of work against her muscles.
If the human physical muscular system were 100% efficient, and capable
of absorbing work as well as spending it, then the bodybuilder would do
exactly zero work in the process of 1-up followed by 1-down.
Answer:bippity boppity yee
Explanation:
Answer:
No, the acceleration is not always zero.
Explanation:
It does not mean that the acceleration of the particle is zero.
The velocity of wave is different from the velocity of particle.
The acceleration of wave is different from the acceleration of particle.
the acceleration of the particle is given by

where, w is the angular frequency and y is the displacement from the mean position.
So, the acceleration is zero at mean position only and it varies as the position changes.