Adam and Bobby are twins who have the same weight. Adam drops to the ground from

Question

Adam and Bobby are twins who have the same weight. Adam drops to the ground from a tree at the same time that Bobby beigns his descent down a frictionless slide. If they both start from the same height above the ground, how do thier kinetic energies compare when they hit the ground?

A. Adam has greater kinetic energy than Bobby

B. Bobby has greater kinetic energy than Adam

C. They have the same kinetic energy

D. More information is required to make comparison.

Full explanation has to be given Thanks!

Explanation / Answer

when they reach their end points both will have same velocities v=sqrt(2*g*h).......hence same K.E.......because K.E=(1/2)*m*v^2......

so option is C C. They have the same kinetic energy

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.