(A) An object of 2kg mass falls, without friction, from rest a distance of 10 me
ID: 1488436 • Letter: #
Question
(A) An object of 2kg mass falls, without friction, from rest a distance of 10 meters, find the energy of the object at 5 meters down from rest position. (B) find the speed of the object in the above question just before it hits ground. (A) An object of 2kg mass falls, without friction, from rest a distance of 10 meters, find the energy of the object at 5 meters down from rest position. (B) find the speed of the object in the above question just before it hits ground. (B) find the speed of the object in the above question just before it hits ground.Explanation / Answer
Mass =2.00kg
Distance = 10m
Kinetic energy = change in mgh = 2x9.81x5 = 98.1 J
Potential energy = mgH = 2x9.81x5 = 98.1 J
and total = 98.1+98.1
= 196.2J
(B) find the speed of the object in the above question just before it hits ground.
KE = 1/2 mv^2 = 98.1
-------------> v = 9.9 m/s
When the object falls 5m, the change in potential energy for the 5m is converted as the kinetic energy KE
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.