What is the mass of a baseball that has a kinetic energy of 100 J and is traveling at 5 m/s?
2 answers:
The formula of the kinetic energy is:
K.E =
mv²
The given are
K.E = 100 J
v = 5 m/s
Plug them in:
100 =
m × (5)²
100 =
m × 25
100 = 12.5m
Divide by 12.5 on either sides to isolate m
=
12.5 and 12.5 cancels out
8 kg = m
The mass of the baseball that has a kinetic energy of 100 J and speed of 5 m/s is 8 kg
Answer:
mass = 8 kg.
Step-by-step explanation:
Given : kinetic energy of 100 J and is traveling at 5 m/s?
To find : What is the mass of a baseball.
Solution : We have given
Kinetic energy = 100 J.
Velocity = 5 m/s.
Kinetic energy = .
Where m = mass , v = velocity.
Plugging the values
100 = .
100 = .
On multipkying both sides by 2
200 = 25 m
On dividing both sides by 25
mass = 8 kg.
Therefore, mass = 8 kg.
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