Answer:
The velocity with which the mass will hit the floor is 
Explanation:
If the tension in the string is 
, for 
we have
,
and for the mass 
From these equations we solve for 
and get:
The kinematic equation
gives the final velocity 
of a particle, when its initial velocity was 
, and has traveled a distance 
while undergoing acceleration .
In our case
(the initial velocity of the particles is zero)
which gives us
which is the velocity with which the mass will hit the floor.
You must find the component of the force before calculating
Answer:
I hope this helps a little bit.
Answer: The correct answer is "work".
Explanation:
The expression for the work done in terms of force and displacement is as follows;
W= Fd
Here, W is the work done, F is the applied force and d is the displacement.
If the force is applied to an object and the object is displaced to some distance then the work is done.
It is given in the problem that force is applied to an object and the object is moved over a distance in the same direction of the applied force". The given statement is the definition of work. The work done can be zero, negative and positive. In the given case, the positive work is said to be done as the direction of the applied force and the distance moved by the object are same.
Therefore, the correct option is (d).
