A crate gains 36.0 ? of kinetic energy while its speed is increased from 2.00 ?/? to 4.00 ?/? . Which one of the following choices best represents the mass of the crate?
1.5 kg
3.0 kg
6.0 kg
36.0 kg
18.0 kg
Change in kinetic energy∆K.E =0.5m[V2-V1]^2
36J=0.5m[V2-V1]^2
36=0.5m[4^2-2^2]
Solving this Equation
We will get m=6 kg
A crate gains 36.0 ? of kinetic energy while its speed is increased from 2.00 ?/?...
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