Question: a . A projectile is fired at an upward angle of 3 8 . 0 from the top of a 1 3 5 - m

a. A projectile is fired at an upward angle of 38.0 from the top of a 135-m-high cliff with a speed of 165ms. What will be its speed when it strikes the ground below? (Use conservation of energy.)
b. A sled is initially given a shove up a frictionless 44 incline. It reaches a maximum vertical height 1.65 m higher than where it started at the bottom. What was its initial speed?
a . A projectile is fired at an upward angle of 3

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