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What is the kinetic energy of a baseball moving at a speed of 40ms if the baseball has a mass of 0.15 kg?
Wiki User
∙ 12y ago
Kinetic energy is...
EK = 0.5 M V2
...where EK is energy in joules, M is mass in kg and V is velocity in m s-1. Plugging in the knowns, we get
108 = (0.5) (0.146) V2
Solving for V, we get
V = 38.5 m s-1
Wiki User
∙ 12y ago
Wiki User
∙ 13y agoI kind of forget how to do it but I think it's
0.145X42=something
Wiki User
∙ 13y agoVelocity of 40 m/s
KE = 1/2 * mass * velocity squared
KE = 1/2(0.145 kg)(40 m/s)^2
= 116 Joules
Wiki User
∙ 13y agoKinetic Energy = (1/2) x (mass) x (speed)2
40 = (1/2) (0.2) (speed)2
speed2 = 40/0.1 = 400
speed = 20 m/s
Wiki User
∙ 12y agoKinetic Energy = 1/2 Mass (kg) * velocity squared (m/s)
KE = 1/2mV^2
KE =1/2(0.15 kg)(40 m/s)^2
= 120 Joules
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Wiki User
∙ 12y agoKinetic energy can be calculated using the formula KE = (1/2)mv^2.
In this case KE = 108 joules.
Wiki User
∙ 12y agoKE = mass * velocity squared
KE = (0.15 kg)(40 m/s)^2
= 240 Joules of kinetic energy
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Wiki User
∙ 12y agoKinetic energy (KE) can be written in the form KE = (1/2)mv^2
Solving this for velocity gives you v = Square-root(2KE/m).
The answer in this case is 38.33 m/s.
Jenna Whitmer
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Amya Price
Jermaiah Phillips
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