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A mountain climber jumps a crevasse of width W by leaping horizontally with speed v0. (a) If the height difference between the two sides of the crevasse is h, what is the minimum value of v0 for the climber to land safely on the other side? (b) In this case, what is the climber’s direction of motion on landing?
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Modified Mastering Physics with Pearson eText -- Access Card -- for Physics (18-Weeks)
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- An object is thrown off the top of a building with velocity 28 m/s at an angle of 32° with respect to the horizontal. It takes 6.2 s for the object to land. (a) How high is the building in meters? (b) What is the horizontal distance that the object travels in meters?arrow_forwardAn airplane flying horizontally with a speed of 500 km/h at a height of 700 m fires a crate of supplies forward at a speed of 100 m/s (see the figure). Help on how to format answers: dalits (a) If the parachute fails to open, how far (horizontally) in front of the release point does the crate hit the ground? (b) What is the magnitude of the crate's velocity when it hits the ground?arrow_forwardYou are standing on a loading dock at the top of a flat ramp that is at a constant angle a0 below the horizontal. You slide a small box horizontally off the loading dock with speed v0 in a direction so that it lands on the ramp. How far vertically downward does the box travel before it strikes the ramp?arrow_forward
- When throwing a ball, your hand releases it at a height of 1.5 m above the ground with velocity 6.8 m/s in direction 57° above the horizontal. (a) How high above the ground (not your hand) does the ball go?(b) At the highest point, how far is the ball horizontally from the point of release?arrow_forwardA rock is thrown off a cliff at an angle of 53° with respect to the horizontal. The cliff is 100 m high. The initial speed of the rock is 30 m/s. (a) How high above the edge of the cliff does the rock rise? (b) How far has it moved horizontally when it is at maximum altitude? (c) How long after the release does it hit the ground? (d) What is the range of the rock? (e) What are the horizontal and vertical positions of the rock relative to the edge of the cliff at t = 2.0 s, t = 4.0 s, and t = 6.0 s?arrow_forwardThey came between two buildings that are separated horizontally by a distance of 3.6m and a drop of 2.8m. To cross safely, Jerry has to jump in the horizontal direction with a minimum speed ?0. (a) Calculate the minimum speed ?0 Jerry needs to cross safely. Tom jumps with a speed of 4.8 m/s at an angle of 45⁰ (wow!!! Looks like Tom knows physics). (b) Where does Tom land? (Please show work) (c) By how much does Tom clear the gap? (d) What is Tom’s velocity (magnitude and direction) on landing.arrow_forward
- A golf ball leaves the tee with a velocity of 30.0 m/s at an angle of 37° to the horizontal. (a) What is the maximum height reached by the ball? (b) At what time does the ball reach this height?arrow_forwardA friend of yours has a one story house with a pool in the backyard. Someone gets the bright idea to jump from the roof of the house into the deep end of the pool. a) If the roof of the house is 16 ft tall and the horizontal distance between the edge of the house and the pool is 10 ft, what would the jumper's minimum velocity need to be to land in the pool? b) Let's assume your friend can jump with an initial horizontal velocity of 15 ft/s. What is their total velocity when they hit the water? (hint: determine both the x and y velocity components, find the resultant)arrow_forwardDuring a recent winter storm, bales of hay had to be dropped from an airplane to a herd of cattle below. Assume the airplane flew horizontally at an altitude of 180 m with a constant velocity of 50 m/s and dropped one bale of hay every two seconds. It is reasonable to assume that air resistance will be negligible for this situation. About how far apart from each other will the bales land on the ground? 300 m O 180 m O 100 m 50 marrow_forward
- Classical Dynamics of Particles and SystemsPhysicsISBN:9780534408961Author:Stephen T. Thornton, Jerry B. MarionPublisher:Cengage LearningUniversity Physics Volume 1PhysicsISBN:9781938168277Author:William Moebs, Samuel J. Ling, Jeff SannyPublisher:OpenStax - Rice University
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