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automobile has 2000 J of kinetic energy. when it moves at twice the speed, wut will be its kinetic energy?

Posted March 21st, 2010 by admin 3 Comments »

lalalaa asked:

a. suppose an automobile has 2000 J of kinetic energy. When it moves at twice the speed, what will be its kinetic energy?

b. what’s its kinetic energy at three times the speed?

Posted March 13th, 2010 by admin 2 Comments »

Reaga asked:

Suppose an automobile has 2100 J of kinetic energy. When it moves at twice the speed, what will be its kinetic energy?
8400 J

What’s its kinetic energy at three times the speed?
____?

Posted January 10th, 2010 by admin 5 Comments »

Hghsd asked:

Suppose an automobile has 3300 J of kinetic energy. When it moves at twice the speed, what will be its kinetic energy?

What’s its kinetic energy at three times the speed?