Question

A ball of mass 10 g is dropped from a certain height. At 50m height its KE is equal to its PE. From what height was it dropped? Calculate its PE at the topmost point, TE midway.

• A. Max. Height = 100 m ; PE at top = 10 J and TE midway = 10J
• B. Max. Height = 50 m ; PE at top = 10 J and TE midway = 5J
• C. Max. Height = 100 m ; PE at top = 5 J and TE midway = 10J
• D. Max. Height = 200 m ; PE at top = 5 J and TE midway = 5 J

Answer 1

The correct option is A

Max. Height = 100 m ; PE at top = 10 J and TE midway = 10J