When a crate with mass 25.0 kg is placed on a ramp that is inclined at an angle a below the horizontal, it slides down the ramp with an acceleration of 4.9 m/s2. The ramp is not frictionless. To increase the acceleration of the crate, a downward vertical force F vector is applied to the top of the crate. What must F be in order to increase the acceleration of the crate so that it is 9.8 m/s2? How does the value of F that you calculate compare to the weight of the crate?

When a crate with mass 25.0 kg is placed on a ramp that is inclined at an angle a below the horizontal, it slides down the ramp with an acceleration of 4.9 m/s2. The ramp is not frictionless. To increase the acceleration of the crate, a downward vertical force F vector is applied to the top of the crate. What must F be in order to increase the acceleration of the crate so that it is 9.8 m/s2? How does the value of F that you calculate compare to the weight of the crate?

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