Problem based on angle of incidence
Two plane mirrors are separated by 120°, as the drawing illustrates. If a ray strikes mirror M1 at a 65° angle of incidence, at what angle does it leave mirror M2?
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After falling from rest from a height of 33 m, a 0.55-kg ball rebounds upward, reaching a height of 23 m. If the contact between ball and ground lasted 2.1 ms, what average force was exerted on the ball?
A proton is projected in the positive x direction into a region of uniform electric field = (-6.80 105) N/C at t = 0. The proton travels 6.70 cm as it comes to rest. (a) Determine the acceleration of the proton.
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At what horizontal distance, x, from the base of the building will the rock strike the ground? Assume the ground is level and that the side of the building is vertical. The acceleration of gravity is 9.8 m/s2.
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The crate shown in the figure lies on a plane tilted at an angle theta = 27{rm ^circ} to the horizontal, with mu_k = 0.15.Determine the acceleration of the crate as it slides down the plane.If the crate starts from rest 8.15 {rm m} up the plane fr
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