The graph shows how velocity $$\(v\)$$ varies with time $$\(t\)$$ for a bungee jumper. At which point is the bungee jumper momentarily at rest and at which point does she have zero acceleration?

A.
B.
C.
D.
Physics
IGCSE&ALevel
CAIE
Exam No:9702_w24_qp_11 Year:2024 Question No:14

Answer:

C

Knowledge points:

3.1.1 define and use distance, displacement, speed, velocity and acceleration
3.1.2 use graphical methods to represent distance, displacement, speed, velocity and acceleration
3.1.3 determine displacement from the area under a velocity-time graph
3.1.4 determine velocity using the gradient of a displacement-time graph
3.1.5 determine acceleration using the gradient of a velocity-time graph
3.1.6 derive, from the definitions of velocity and acceleration, equations that represent uniformly accelerated motion in a straight line
3.1.7 solve problems using equations that represent uniformly accelerated motion in a straight line, including the motion of bodies falling in a uniform gravitational field without air resistance
3.1.8 describe an experiment to determine the acceleration of free fall using a falling body
3.1.9 describe and explain motion due to a uniform velocity in one direction and a uniform acceleration in a perpendicular direction

Solution:

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