you push a 51 kg box with a force of 485 N. the friction force on the box is 232 N. calculate the acceleration of the crate.
1 answer:
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Answer:
The angular speed is
Explanation:
From the question we are told that
The time taken is
The number of somersaults is n = 1.5
The total angular displacement during the somersault is mathematically represented as
substituting values
The angular speed is mathematically represented as
substituting values
Answer:
Mass and velocity.
Explanation:
Kinetic energy <u>is the energy that an object has due to its movement</u>, mathematically it is represented as follows:
where is the mass of the object, and
is its velocity at a given point in time.
So we can see that to find the kinetic energy just before the ball hits the gound, we need the quantities:
- mass of the ball
- velocity of the ball before it hits the ground
With the knowledge of these two quantities the kinetic energy of the ball before touching the gound can be determined.