Can you tell me how to know the answers with steps please?A,B, C, D, E, G for the question below the drawing.
1 Answer
Nov 15, 2017
OK, off we go!
Explanation:
Max PE (remember
As energy is conserved, any PE lost becomes KE, so max KE is just the lowest point (point D)
PE = KE just means half the PE has been converted, so half the height, point C.
PE > KE means any point above the equilibrium (point C) so either E or G (A is also true, but they probably don’t want this answer again.)
KE > PE means any point below C, so B is your best (though you could use D)
All this assumes there are no frictional forces (air resistance etc.)