Physics, 22.06.2019 20:20 NNopeNNopeNNope

# The base of a 50-meter tower is at the origin; the base of a 50-meter tree is at (0, 50, 0). the ground is flat and the z-axis points upward. the following parametric equations describe the motion of six projectiles each launched at time t = 0 in seconds. (i) r (t) = (50 + t2)k (ii) r (t) = 2t2 j + 2t2k (iii) r (t) = 50 i + 50 j + (50 âˆ’ t2)k (iv) r (t) = 2t j + (50 âˆ’ t2)k (v) r (t) = (50 âˆ’ 2t) i + 2t j + (50 âˆ’ t)k (vi) r (t) = t i + t j + tk (a) which projectile is launched from the top of the tower and goes downward? at time t = , the projectile hits the ground at point (x, y, z) = . (b) which projectile hits the top of the tree?

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Using the given data table, calculate the acceleration of the skateboarder. you can use either form of the equation below?

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Afather (m = 65 kg) and son (m = 47 kg) are standing facing each other on a frozen pond. the son pushes on the father and finds himself moving backward at 3 m/s after they have separated. how fast will the father be moving?

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