Answer:
same 0.81m
Explanation:
in this problem if we assume there no resistance of any sort. and we apply the energy conservation
change in Potential energy = change in kinetic energy
mgh = 0.5mv^2
gh = 0.5v^2
the above relation suggests that the speed at the bottom is only depending on the height it is released from not on the shape, mass or radius.
so at the bottom
put h = 0.81m
9.81 * 0.81 * 2 = v^2
v=3.99 m/s
both CYLINDER and SPHERE will have same velocity at the bottom if released from the same height irrespective of shape and size
Answer: Yes
Explanation:
Velocity 
is defined as the distance traveled 
in a specific time 
:
If you are traveling at 
a distance 
, then the time it will take you to be at work is:
This means you will make it on time, because this time is less than 0.25 h.
Answer:
Hey there!
Inclined planes are used to lift heavy objects to higher places.
Hope this helps :)
Answer:
Since the net force is to the right (in the direction of the applied force), then the applied force must be greater than the friction force. The friction force can be determined using an understanding of net force as the vector sum of all the forces.
Explanation:
A. The English system uses one unit for each category of measurement.
