Physics Test 10

Result

Physics Test 10

Score
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Rank
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TIME Taken - -

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Question 1
4 / -1

A coin is placed on a horizontal platform which undergoes vertical simple harmonic motion of angular frequency ï. The amplitude of oscillation is gradually increased. The coin will leave contact with the platform for the first time

A
at the mean position of the platform

B
for an amplitude of g/ï²

C
for an amplitude g²/ï²

D
at the highest position of the platform

Solution

Acceleration of coin can be maximum equal to g and is downward direction. At highest position acceleration of platform will be more than g downward if amplitude is greater than g/ï²