Answer:
Vf = 68.67[m/s]
Explanation:
To solve this problem we must use the following kinematics equation:
where:
Vf = final velocity [m/s]
Vi = initial velocity = 0
g = gravity = - 9.81 [m/s2]
t = time = 7 [s]
Vf = 0 - (-9.81*7)
Vf = 68.67[m/s]
Answer:
The friction of the moving object is proportional and perpendicular to the normal force
Answer:
given to you by others
Explanation:
Since it is other people who are giving you the feedback they may notice things that you are not aware you are doing. they can also give /help you to alter that thing and help you achieve you goal
Answer:
The friction of the string and its pivotal anchor point cannot be eliminated. The precise measurement of the length of the pendulum is difficult to take by using meter sticks or rulers. The value of the acceleration due to gravity g in the locality is not constant and must be obtained from reliable sources.