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enyata [817]
3 years ago
12

Pls help me solve this physics question​

Physics
2 answers:
Anestetic [448]3 years ago
8 0

Answer:

1.4

Explanation:

professor190 [17]3 years ago
4 0

Answer:

C. 1.4 m/s

Explanation:

Energy is conserved:

Initial energy = final energy

At P, the pendulum has only gravitational potential energy.

At Q, the pendulum has only kinetic energy.

PE = KE

mgh = ½mv²

v = √(2gh)

Given h = 0.1 m:

v = √(2 × 9.8 m/s² × 0.1 m)

v = 1.4 m/s

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