Two cannon balls are dropped simultaneously from the Leaning Tower of Pisa. One

Question

Two cannon balls are dropped simultaneously from the Leaning Tower of Pisa. One has mass M, the other mass 4M. The effects of aerodynamic drag forces on the two balls as they fall to the ground are negligible, so, which of the folloing states about the situation is correct?

A The two balls experience equal forces and hit the ground at the same time
B The energies of the two balls are the same just before they hit the ground at the same time
C The two balls have the same amount of work done to them as they fall to the ground at the same time

D The balls' momenta change by the same amount as they fall to hit the ground at the same time
E none of the above

Explanation / Answer

E)None of the above.
force= mg
energy= 0.5m* V^2
work= mgh
momenta= m* V
They have same velocity as they have same acceleration g; but as their masses are diiferent no case is possible.

Related Questions

Navigate

• Browse (All)
• Browse T
• Subjects

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