Its speed when it strikes the ground

Reference no: EM1313089

Q1. A projectile is fired at an upward angle of 45° from the top of the 318 m cliff with a speed of 182m/s. What would be its speed when it strikes the ground below? (Use conservation of energy.)

Q2. A block with mass m = 15kg rests on a frictionless table and is accelerated by a spring with spring constant k = 4234N/m after being compressed the distance x1 = 0.536m from the spring's unstretched length. The floor is frictionless except for a rough patch a distance d = 2.6m long. For this rough path, the coefficient of friction is μk = 0.47.

Reference no: EM1313089

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