For an automobile, how would the kinetic energies compare at 50 km/h and at 100 km/h? How might this affect s?

if any one can do dis

physice sam

i ll be so happy for ur help

4. The effect of mass on kinetic energy was not investigated in this simulation. How might the kinetic energy of a car travelling at 50 km/h compare with a more massive truck travelling at the same speed?



and the formila to be use for thoes to sam

are Ek= 1/2mv2 if any one knoe that please do and help me out ..
Kinetic energy is directly related to the mass of the object. So , at the same speed, if the mass was double, the kinetic energy would be double.

Kinetic energy is also directly related to the square of the velocity. So , with the same mass, if the velocity was double, the kinetic energy would be 2^2 or 4 times more.

For your initial question, the auto would first have a Ek represented by 1/2mv^2 or 1/2 m (50)^2.

This would be a velocity factor represented by (2500)

The same auto travelling at 100km/h would have a Ek represented by 1/2m (100^2)

This would be a velocity factor represented by (10,000)

The second auto would have 10000/2500 = 4 times the kinetic energy of the first.

In order to know what the a kinetic energies actually are, we must convert the factors to the proper units. The velocity would have to be converted to meters per second.

However this relative comparison between these two would remain the same.
Find Ek for v1 = 50 km/hr and v2=100 km/hr

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