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HardPhysicsfluid
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1. A person of height 1.8 m is walking away from a lamp post of height 5 m along a straight path on the flat ground. If the speed of the person is 70 cm s⁻¹, the speed of the tip of the person's shadow on the ground with respect to the person is
A
0.52 m/s
B
0.68 m/s
C
0.76 m/s
D
0.40 m/s
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