University:
Concordia University Wisconsin
Course:
PHYS 1514 | General Physics I
Academic year:

2021
Views:

485

Pages:

2
Author:

Shyanne Johnson

3. An earth bound golfer strikes a golf ball giving it a velocity of 48 m/s at an angle of 50.° to the horizontal.(a) What are the vertical and horizontal components of the ball's initial velocity? vx = vy = . . t= . (b) How long is the ball in the air? (c) What is the horizontal distance covered by the ball while in flight? dx = . (d) What velocity does the ball have at the top of its trajectory? v= . 4. A rescue pilot wishes to drop a package of emergency supplies so that it lands as close as possible to a target. If the plane travels with a velocity of 81 m/s and is flying 125 m above the target, how far away (horizontally) from the target must the rescue pilot drop the package? dx = . Answers: 1. a) 37 m/s, 31 m/s b) 39 s c) 1.4 x 103 m 2. a) 4.5 s b) 120 m c)51 m/s [ 58o below horiz] 3. a) 37 m/s, 31 m/s b) 7.5 s c) 230 m d) 31 m/s 4. 410 m 18 Kinematics #4 (name) 1. A ball is thrown with a velocity of 24 /s at an angle of 30.° to the horizontal. (a) What are the vertical and horizontal components of the initial velocity? m vx = vy = . . (b) How long is the ball in the air? t= . (c) How far away will the ball land? dx = . dy = . (d) To what maximum height will the ball rise? (e) With what velocity will the ball land? v= . 2. A youngster hits a baseball giving it a velocity of 22 m/s at an angle of 62° with the horizontal. How far will the ball travel before a fielder catches it (assuming the fielder catches the ball at the same height that it is hit.) dx = 19 .

Kinematics #4

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