To start an avalanche on a mountain slope, an artillery shell is fired with an i

Question

To start an avalanche on a mountain slope, an artillery shell is fired with an initial velocity of 310 m/s at 47.0degree above :the horizontal. It explodes on the mountainside 35.0 s after firing the x' and y coordinates of the shell where it explodes, relative to its firing point? x = m y = Use the constant acceleration equations separately for the x components and for the y components of the motion. m A ball is tossed from an upper-story window of a building . The ball is given an initial velocity of 8.50 m/s at an angle of 19.0degree below the horizontal. It strikes the ground 4.00 s later. How far horizontally from the base of the building does the ball strike the ground? m Find the height from which the ball was thrown. Work only with the vertical components of these quantities. This part of the problem is then a 1-dimensional free-fall example. m How long does it take the ball to reach a point 10.0 m below the level of launching? s

Explanation / Answer

you asked two questions so here is the answer for the first: x= x0 + v0x t + 1/2 ax t^2 x = 0+ 310*cos(47)*35 + 0=7399.68 y = y0 + v0y t + 1/2 ay t^@ y= 0 + 310*sin(47)*35 + 0.5 *-9.81*35^2 =1926.56

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