In: Physics
When a crate with mass 23.0 kgkg is placed on a ramp that is inclined at an angle αα below the horizontal, it slides down the ramp with an acceleration of 4.9 m/s2m/s2. The ramp is not frictionless. To increase the acceleration of the crate, a downward vertical force F⃗ F→ is applied to the top of the crate.
a. What must FF be in order to increase the acceleration of the crate so that it is 9.8 m/s2m/s2?
b. how does the value of F that you calculated compare to the weight of the crate?