The figure is a graph of the force exerted by the floor on a woman making a vertical jump.At what speed does she leave the ground? Hint: The force of the floor is not the only force acting on the woman.
Afootball is kicked at ground level with a speed of 17.2 m/s at an angle of 31.0° to the horizontal. Part A How much later does it hit the ground? Express your answer using three significant figures and include the appropriate units. Value Units Submit Request Answer
A bomber flies horizontally with a speed of 347 m/s relative to the ground. The altitude of the bomber is 2900 m and the terrain is level. Neglect the effects of air resistance. The acceleration of gravity is 9.8 m/s2 . a) How far from the point vertically un- der the point of release does a bomb hit the ground? Answer in units of m. b) At what angle from the vertical at the point of release must the telescopic...
Chapter 04, Problem 101 In the figure, a ball is shot directly upward from the ground with an initial speed of vo 9.20 m/s. Simultaneously, a construction elevator cab begins to move upward from the ground with a constant speed of vc = 2.80 m/s, what maximum height does the ball reach relative to (a) the ground and (b) the cab floor? At what rate does the speed of the ball change relative to (c) the ground and (d) the...
A ball from ground surface is projected upward by speed of 10m/sec. How high does it go?
The images of trees in the figure come from a catalog advertising fast-growing trees. If we mark the position of the top of the tree in the successive years, as shown in the graph in the figure, we obtain a motion diagram much like ones we have seen for other kinds of motion. The motion isn’t steady, of course. In some months the tree grows rapidly; in other months, quite slowly. We can see, though, that the average speed of...
2. On a flat, open field, a cannonbal is fired from the ground with a speed of 80.0 m/s and at an angle of 60.0° above the horizontal. (a) What is the cannonball's maximum height above the ground? (b) After launch, how much time does it take for the cannonball to hit the ground? (c) What is the distance between the launching point and the point of impact?
2. A basketball player jumps directly upwards to shoot a ball. a. What initial speed does she have to leave the ground with for her to reach a height of 60 cm? b. Draw the free body diagram of the person during the jump. c. In terms of this jumper's weight, what force does the ground exert on her during the jump?
6 A ball is thrown from ground-level with speed v at an angle 0 to the horizontal (0 < 0 < п /2). (a) When and where does the ball hit the ground? (b) Now suppose that the ground is sloped in the shape y(x)= Ar as pictured below. The ball is thrown as before from the origin. When and where does the ball hit the ground? y (c) Now suppose the ground takes the form of the hill pictured...
You are standing on the ground observing the sky. Two spaceships A and B fly past you. Spaceship A is moving at a constant speed of 1000 m/s relative to the ground. Spaceship B is moving opposite to A at speed of 1000 m/s relative to the ground. Spaceship A fires a strobe light that sends out a pulse of light opposite to where it is heading. a) What is the velocity of spaceship A relative to spaceship B? b) What is...