Refer to the figure below. A grasshopper leaps into the air from the edge of a vertical cliff. If the initial velocity v0 = 2.17 m/s, use information fromthe figure to find: a. the angle at which the grasshopper launched

9. A boy wishes to throw a ball over a flat roofed school house that stands 12 m wide and 7.5 m high on level ground. Assuming that the ball will leave his hand at a height of 1.5 m above the ground, determine how far from the wall he should take his stand in order to make the ball clear the roof with least effort, that is, with minimum initial velocity. A. 4.4 m B. 2.1 m C. 7.4 m D. 8.1 m

IPA crow is flying horizontally with a constant speed of 2.90 m/s when it releases a clam from its beak as shown in the figure(Figure 1). The clam lands on the rocky beach 1.50 s later. Let upward be the positive y direction. Part A Just before the clam lands, what is its horizontal component of velocity? V, = 2.90 m/s Subm Prevlous Anawere v Correct Part B Just before the clam lands, what is its vertical component of velocity? Templates Symbols undo redo Teset keyboard shortcuts help "y = |19.7 m/s Submit Prevlous Anawer Requeet Anawer X Incorrect; Try Again; 4 attempts remaining

A ball is tossed from upper-story window of a building. The ball is given an initial velocity at 8.0 m/s at an angle of 200 below the horizontal. It strikes the ground 3.0 s later. a.)     How far horizontally from the base of the building does the ball strike the ground? b.)    Find the height from which the ball was thrown. c.)     How long does it take the ball to reach the point 10m below the level launching?