Picture a cart with an inclined top surface (see diagram). Assume θ=30.0o. At what rate must the cart accelerate to the slide to keep a frictionless block on it from sliding off?
A
4.9m/s2
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B
5.7m/s2
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C
8.5m/s2
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D
17.0m/s2
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E
More information is needed
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Solution
The correct option is C5.7m/s2 The component of gravitational force on the block along the inclined plane must be balanced by the pseudo inertial force's component along the incline acting the block.