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The correct answer is 7.24
See picture below for the steps!
As always, I am here to help!
The correct answer is 7.24
See picture below for the steps!
As always, I am here to help!
Assume that a person bouncing a ball represents a closed system. Which statement best describes how the amounts of the ball's po
1 answer:
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Answer:
v = 16.58 m/s
Explanation:
Given that,
Mass of a bird, m = 1.6 kg
Kinetic energy of the bird, K = 220 J
We need to find the speed of the bird. The formula for the kinetic energy is given by :
Where
v is the speed of the bird
So,
Put all the values,
So, the speed of the bird is equal to 16.58 m/s.
Answer:
Explanation:
Given data
Ball one
mass m₁=3.0kg
velocity v₁=20 m/s
Ball second
mass m₂=2.0 kg
velocity v₂=12 m/s
First we need the speed of combined ball.Since the system conserves the linear momentum
So the combined velocity vt is:
Since the two balls 1 and 2 are moving in opposite direction
So
Substitute the given values
We have the equation for motion with constant acceleration is given by:
At initial position y₀=0 and vt=v-v₀
So