As an object falls from rest, its gravitational potential energy is converted to kinetic energy. ... Once the object hit on the ground, height is zero, therefore no potential energy at ground level. ... If a mass of 4 kg is dropped from a height of 100 meters
Answer:
163.4 or m2/s
Explanation:
The rate of change of the radius is 1 m/s
The area of a circle is
We differentiate this to get the rate of change of the area with the radius:
The rate of change of the area is
At r = 26 m,
Answer:
1.15 rad/s²
Explanation:
given,
angular speed of turntable = 45 rpm
=
=
time, t = 4.10 s
initial angular speed = 0 rad/s
angular acceleration.
Hence, the angular acceleration of the turntable is 1.15 rad/s²
What are the given choices?
The weight of the car in the picture of the computer screen is 9,800 Newton's.