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Question: Answered & Verified by Expert
A stone of mass \( 0.05 \mathrm{~kg} \) is thrown vertically upwards. What is the direction and magnitude of
net force on the stone during its upward motion?
PhysicsCommunication SystemKCETKCET 2015
Options:
  • A \( 0.49 \mathrm{~N} \) vertically upwards
  • B \( 0.49 \mathrm{~N} \) vertically downwards
  • C \( 0.98 \mathrm{~N} \) vertically downwards
  • D \( 9.8 \mathrm{~N} \) vertically downwards
Solution:
1551 Upvotes Verified Answer
The correct answer is: \( 0.49 \mathrm{~N} \) vertically downwards
Given, mass $\mathrm{m}=0.05 \mathrm{~kg}$
When the stone is thrown upwards, force due to gravity acts on the stone vertically downwards, it is given as
$F=m g=0.05 \times 9.8=0.49$
Magnitude of net force $=0.49 \mathrm{~N}$
Direction of net force is vertically downwards.

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