1a3 marks
Higher Tier
A free-fall skydiver falls from a plane and reaches terminal velocity after 15 seconds.
Look at the graph of her motion.
a)
Use the graph to find the acceleration at 5 seconds.
Answer = ......................... m/s2 [3]
1b2 marks
Higher Only
b)
Use the graph to find the distance travelled between 0 and 2.5 seconds.
Answer= ......................... m [2]
1c6 marks
Higher Only
c)
A skydiver jumps from an aeroplane, falls towards the ground, opens her parachute and falls safely to Earth.
Look at the graph of the velocity of the skydiver as she falls.
Look at these regions of the graph:
Look at the graph of the velocity of the skydiver as she falls.
Look at these regions of the graph:- x
- y
Use ideas about forces to explain the motion during x and y.
[6]
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