Answer:
Explanation:
Suppose v is the initial velocity and
is the angle of inclination
distance traveled in vertical direction in t=1 s
When gravity is present

where 



here initial velocity is v\sin \theta [/tex] so


In absence of gravity



Answer:
The cathode ray is deflected vertically to the fluorescent screen
Explanation:

Answer:
The no. of revolutions does the tub turn while it is in motion is = 52.51 revolutions
Explanation:
Given data
= 0
= 5 
Time taken = 7 sec
(1). The angular acceleration is given by



We know that from the equation of motion


-------- (1)
(2). The angular acceleration is given by


- 0.357 
We know that from the equation of motion


= 35.01 rev ------- (2)
Total no of revolution made by the machine is

17.5 + 35.01
52.51 rev
Therefore the no. of revolutions does the tub turn while it is in motion is = 52.51 rev