Answer:
The value is
Explanation:
From the question we are told that
The rate at which the plate rotates is
Generally the revolution per second is mathematically represented as
=>
Matter is all around us and is defined as anything that has MASS and takes up space (VOLUME). All matter is made up of _________
1 answer:
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Answer:
Explanation:
given,
mass of solid sphere = M
radius = R
linear speed = v
now,
Linear Kinetic energy
...............(1)
Rotational kinetic energy
moment of inertia of the solid sphere
and v = R ω
............(2)
ration of rotational and Kinetic energy
hence, ratio of rotational to linear kinetic energy is equal to 2/5.
Answer:
a. What impulse act on the ball during its collision with the floor?
b. If the ball is in contact with the floor for 0.04 s, what is the average force of the ball on he floor?
The answers to the question are
a. The impulse acting on the ball during its collision with the floor is
7.076 kg·m/s
b. The average force of the ball on the floor with contact of 0.04 s is
176.9 N
Explanation:
Mass of the ball = 0.61 kg
Initial velocity = -7 m/s
Final velocity = 4.6 m/s
Impulse = Δp = FΔt = mΔv
Where Δt =change in time
m = mass of Average force of he the ball
Δv = velocity change
Therefore impulse = m×(Final velocity - initial velocity)
= 0.61 × (4.6-(-7)) = 0.61×11.6
= 7.076 kg·m/s
b. Average force of the ball on the floor is given by
×Δt = mΔv = 7.076 kg·m/s
where Δt = change in time = 4.6 m/s
Therefore =mΔv /Δt = 7.076/0.04 = 176.9 kg·m/s²
= 176.9 N