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A projectile is fired at an angle of 45 ∘ above the horizontal at a speed...

A projectile is fired at an angle of 45 ∘ above the horizontal at a speed of 106 m/s.

Part A: Calculate the magnitude of its velocity at t=5s. Express your answer in meters per second to two significant figures.

(The direction of its velocity (above the horizontal) at t=5s is 19 degrees)

Part B: Calculate the magnitude of its velocity at t=10s. Express your answer in meters per second to two significant figures.

Part C: Calculate the direction of its velocity (above the horizontal) at t=10s. Express your answer in degrees.

Part D: Calculate the magnitude of its velocity at t=15s. Express your answer in meters per second to two significant figures.

Part E: Calculate the direction of its velocity (above the horizontal) at t=15s. Express your answer in degrees to two significant figures.

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