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Motion along a Straight Line QP.pdf
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AQAA-Level
PHYSICS
Mechanics and Materials
QUESTION PAPER
Motion along a Straight Line
Time allowed
49 minutes
Score Percentage
/41 %
4.1 | CELL BIOLOGY | QUESTION PAPER 1 1
, Q4. (a) A parcel of mass 15 kg drops from a delivery chute onto a conveyor belt as shown in
Figure 1.
The belt is moving at a steady speed of 1.7 m s −1.
The parcel lands on the moving belt with negligible speed and initially starts to slip. It
takes 0.82 s for the parcel to gain enough speed to stop slipping and move at the
same speed as the conveyor belt.
Figure 1
(i) Calculate the change in kinetic energy of the parcel during the first 0.82 s.
change in kinetic energy ................................................. J
(2)
(ii) The average horizontal force acting on the parcel during the first 0.82 s is 31
N.
Calculate the horizontal distance between the parcel and the end of the
delivery chute 0.82 s after the parcel lands on the conveyor belt. Assume that
the parcel does not reach the end of the conveyor belt.
horizontal distance ................................................. m
(2)
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