Concept explainers
Construct Your Own Problem Consider a ball tossed over a fence. Construct a problem in which you calculate the ball's needed initial velocity to just clear the fence. Among the things to determine are; the height of the fence, the distance to the fence from the point of release of the ball, and the height at which the ball is released. You should also consider whether it is possible to choose the initial speed for the ball and just calculate the angle at which it is thrown. Also examine the possibility of multiple solutions given the distances and heights you have chosen.
Trending nowThis is a popular solution!
Chapter 3 Solutions
College Physics
Additional Science Textbook Solutions
College Physics: A Strategic Approach (3rd Edition)
University Physics Volume 2
Conceptual Physics (12th Edition)
Sears And Zemansky's University Physics With Modern Physics
Lecture- Tutorials for Introductory Astronomy
- A person standing at the top of a hemispherical rock of radius R kicks a ball (initially at rest on the top of the rock) to give it horizontal velocity vi as shown in Figure P3.56. (a) What must be its minimum initial speed if the ball is never to hit the rock after it is kicked? (b) With this initial speed, how far from the base of the rock does the ball hit the ground?arrow_forwardA projectile is launched on the Earth with a certain initial velocity and moves without air resistance. Another projectile is launched with the same initial velocity on the Moon, where the acceleration due to gravity is one-sixth as large. How does the range of the projectile on the Moon compare with that of the projectile on the Earth? (a) It is one-sixth as large, (b) It is the same, (c) It is V5 limes larger, (d) It is 6 times larger, (e) It is 6limes larger.arrow_forwardA ball is thrown with an initial speed vi at an angle i with the horizontal. The horizontal range of the ball is R, and the ball reaches a maximum height R/6. In terms of R and g, find (a) the time interval during which the ball is in motion, (b) the balls speed at the peak of its path, (c) the initial vertical component of its velocity, (d) its initial speed, and (e) the angle i. (f) Suppose the ball is thrown at the same initial speed found in (d) but at the angle appropriate for reaching the greatest height that it can. Find this height. (g) Suppose the ball is thrown at the same initial speed but at the angle for greatest possible range. Find this maximum horizontal range.arrow_forward
- Question A5 A projectile is thrown from the ground with a speed of 30 m-s¹ at an angle of 35° from the horizontal. Calculate the height of the projectile from the ground when its speed is 18 m-s-¹. Ignore air resistance.arrow_forwardA ball is fired from a cannon inclined at 360 above the horizontal. The speed with which it leaves the barrel is 200 m/s and the mouth of the cannon is 2 m above ground level. Assume level ground. a) what are the horizontal and vertical components of the initial velocity of the cannon ball ? b) Determine the velocity of the cannon ball at t = 6 seconds. c) How far down range does the ball landarrow_forwardA catapult launches a cat from ground level to a target located on the ground. The cat leavesthe catapult moving at 100 km/h at an angle of 40 degree.a) What is the cat’s velocity half-way through the trajectory (size and direction)?b) What is the cat’s velocity at impact (size and direction)?c) How long is the cat in the air for?d) What is the maximum height?e) What is the range of the cat?arrow_forward
- 1) At the Blue Jays game, R. A. Dickie (height = 1.2m) throws a baseball straight in the air %3D (140g) with 95N of force for 30cm. a. What is the speed of the ball 2.4 m above the ground? b. What is the maximum height of the ball (assuming no air resistance)?arrow_forwardA projectile was thrown from the edge of a 150 m high building with an initial velocity of 180 m/s at an angle of 30 degrees from the horizontal. a. Calculate the speed of the projectile after 15 seconds b. Calculate the horizontal displacement of the projectile c. Calculate the time of flight of the projectile d. Determine the maximum height reached by the projectile measured from the ground e. Calculate the height of the projectile from the ground after 15 secondsarrow_forwarda) At what height above the ground does the projectile have a speed of 0.5v0? Express your answer in terms of v and g. You may or may not use all of these quantities. b) What is the speed of the object at the height of (1/2)hmax? Express your answer in terms of v and g. You may or may not use all of these quantities.arrow_forward
- A golf ball is hit from 4.3 m above a golfing fairway with an initial velocity of 30.0 m/s at an angle of 35° above the horizontal. Determine the time of flight for the ball. Determine the range for the golf ball. Determine the velocity for the golf ball the instant before the ball impacts the ground.arrow_forwardA basketball player tosses a basketball with an initial velocity of v at an angle of 35 degrees, and in the position shown below. The basketball then travels the dashed arc and goes into the basket (i.e. hits a point 11 meters away horizontally and 3 meters off the floor vertically). 2 m Vo 35° 11 m 3 m a) What is the magnitude of the initial velocity of the basketball? b) When does the basketball go into the basket? c) How fast is the basketball travelling when it makes the basket? d) What is the maximum acceleration of the basketball during its flight?arrow_forwardIn a circus, a “human cannonball” is launched from a cannon and lands in a net. The cannon releases him at the same height as the net. His initial velocity is 18.3 m/s in a direction 40.0° above the horizontal. a) For how much time will he be in the air? b) How far does he travel horizontally? c) What is the velocity upon impact? The circus manager from the previous question wants to make the stunt more dramatic by firing the stuntman through a hoop 9.0 m high then land in a safety net at the same height as the cannon. The cannon’s angle is changed to 45.0° and the velocity is increased to 21.0 m/s. The manager needs to know where to place the hoop and safety net. a) How far from the cannon should the safety net be placed? b) What is the time required to reach the height of the hoop? c) How far from the cannon should the hoop be placed?arrow_forward
- Principles of Physics: A Calculus-Based TextPhysicsISBN:9781133104261Author:Raymond A. Serway, John W. JewettPublisher:Cengage LearningGlencoe Physics: Principles and Problems, Student...PhysicsISBN:9780078807213Author:Paul W. ZitzewitzPublisher:Glencoe/McGraw-HillPhysics for Scientists and Engineers, Technology ...PhysicsISBN:9781305116399Author:Raymond A. Serway, John W. JewettPublisher:Cengage Learning
- College PhysicsPhysicsISBN:9781938168000Author:Paul Peter Urone, Roger HinrichsPublisher:OpenStax CollegePhysics for Scientists and Engineers: Foundations...PhysicsISBN:9781133939146Author:Katz, Debora M.Publisher:Cengage Learning