9. A projectile is launched at an angle of 29° and lands 35 seconds later the floor. (a) What is the initial speed of the projectile? (Clue: You may rearrange the equation for getting the time of flight to derive an equation for getting the initial velocity.) (b) What is the maximum height? (c) What is the range? 10. Trying to escape his pursuers, Loid jumps off the roof of the building to reach the roof of the building across. His jump is 60° from the horizontal and has an initial velocity is 17 m/s. To survive and land safely he must clear the gap between two buildings which is 75 m wide. (a) What is maximum height of his jump? (b) Calculating the range of his jump, does he make it? (c) What is his time of flight? 11. At the top of a 50-meter platform, a ball was kicked horizontally an initial velocity of 0.334 m/s. a) How much time elapses before the ball hits the ground? (b) How far does the ball travel horizontally? (c) What is the ball's final velocity before reaching the ground? 12. An arrow is fired from a bow with a horizontal velocity of 52.9 m/s and the arrow was 1.70 m above the ground when the it was released. (a) How far will the arrow fly before it strikes the ground? (b) What is the range of the arrow's flight? (c) What is the velocity of the arrow after 0.33 seconds?
9. A projectile is launched at an angle of 29° and lands 35 seconds later the floor. (a) What is the initial speed of the projectile? (Clue: You may rearrange the equation for getting the time of flight to derive an equation for getting the initial velocity.) (b) What is the maximum height? (c) What is the range? 10. Trying to escape his pursuers, Loid jumps off the roof of the building to reach the roof of the building across. His jump is 60° from the horizontal and has an initial velocity is 17 m/s. To survive and land safely he must clear the gap between two buildings which is 75 m wide. (a) What is maximum height of his jump? (b) Calculating the range of his jump, does he make it? (c) What is his time of flight? 11. At the top of a 50-meter platform, a ball was kicked horizontally an initial velocity of 0.334 m/s. a) How much time elapses before the ball hits the ground? (b) How far does the ball travel horizontally? (c) What is the ball's final velocity before reaching the ground? 12. An arrow is fired from a bow with a horizontal velocity of 52.9 m/s and the arrow was 1.70 m above the ground when the it was released. (a) How far will the arrow fly before it strikes the ground? (b) What is the range of the arrow's flight? (c) What is the velocity of the arrow after 0.33 seconds?
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter3: Motion In Two Dimensions
Section: Chapter Questions
Problem 39AP: A rocket is launched at an angle of 53.0 above the horizontal with an initial speed of 100. m/s. The...
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Transcribed Image Text:9. A projectile is launched at an angle of 29° and lands 35 seconds later the floor. (a) What is the initial speed of the
projectile? (Clue: You may rearrange the equation for getting the time of flight to derive an equation for getting
the initial velocity.) (b) What is the maximum height? (c) What is the range?
10. Trying to escape his pursuers, Loid jumps off the roof of the building to reach the roof of the building across. His
jump is 60° from the horizontal and has an initial velocity is 17 m/s. To survive and land safely he must clear the
gap between two buildings which is 75 m wide. (a) What is maximum height of his jump? (b) Calculating the
range of his jump, does he make it? (c) What is his time of flight?
11. At the top of a 50-meter platform, a ball was kicked horizontally an initial velocity of 0.334 m/s. a) How much
time elapses before the ball hits the ground? (b) How far does the ball travel horizontally? (c) What is the ball's
final velocity before reaching the ground?
12. An arrow is fired from a bow with a horizontal velocity of 52.9 m/s and the arrow was 1.70 m above the ground
when the it was released. (a) How far will the arrow fly before it strikes the ground? (b) What is the range of the
arrow's flight? (c) What is the velocity of the arrow after 0.33 seconds?
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