Alan, Dabir and Harum test three zip wires to find which one is the fastest. Dabir oils his trolley before he makes his trip but the others do not. Alan swings
about on his journey and travels 60 metres in 1 minute, Dabir lies back so his
body is vertical and travels 90 metres in 1 minute, Harum makes a star shape
and ravels 120 metres in 1 minute.
a) What force may be affected by oiling one trolley and not the other?
b) What force may be affected by the positions of Dabir and Harum’s bodies?
c) 'Show your working to calculate the speeds in km/hr of:
(i) Alan
(ii)Dabir
(iii)Harum

if the person is shown to have +90n, then ans is -10n.

if the person is shown to have -90n, then ans is +10n.

report!

explanation:

physics means: "the branch of science concerned with the nature and properties of matter and energy. the subject matter of physics, distinguished from that of chemistry and biology, includes mechanics, heat, light and other radiation, sound, electricity, magnetism, and the structure of atoms."

no. bullets are macro objects. wave nature is for light waves, extremely tiny particles. if a light particle was the size of your finger, the bullet would be the size of the universe. so basically, that huge difference in size makes the wave nature of matter insignificant.