2. A ball is projected horizontally with an initial velocity of 17.9mil/hr from the top of an 80m high building. Compute the following: a. The components of the initial velocity (m/s). b. The time it takes to reach the ground (s). c. The horizontal distance it covers (in miles).

2. A ball is projected horizontally with an initial velocity of 17.9mil/hr from the top of an 80m high building. Compute the following: a. The components of the initial velocity (m/s). b. The time it takes to reach the ground (s). c. The horizontal distance it covers (in miles).

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

See similar textbooks

Similar questions

4. A plane flying due north at 100 m/s is blown by 500 m/s strong wind due east. What is the plane's resultant velocity?
3. A plane is travelling with a velocity relative to the air of 3.5 × 10² km/h [N 35° W] as it passes over Kitchener-Waterloo. The wind velocity is 62 km/h [S]. a) Determine the velocity of the plane relative to the ground. Ans: 3.0 × 10² km/h [N42° W] b) Determine the displacement of the plane after 1.2 h. Ans: 3.6 × 10² km [N 42° W]
4. A projectile is launched from 20.0 m above ground level with an initial velocity of 35.0 m/s at 60.0° with respect to the horizontal. a) What is the object's maximum displacement in the y-direction? 35 m/s
6. A particle is moving in the xy plane following the velocity v = (4t – t?)i+ (3+t)j ft / s. If the particle is initially at rest at the origin, determine the position vector and acceleration vector of the particle. Determine also the velocity and acceleration of the particle t = 2s from the start of motion.
10. Bob is moving at a constant speed of 6.45 m/s, sees Dave 72.0 m ahead and moving in the same direction at a constant speed of 2.10 m/s. What is the distance that Bob moves before he catches up to Dave?
15. Abby is chasing Bradley due north along Warden Avenue at a speed of 7 m/s. She is 47 meters south of the Tim Hortons while Bradley makes a turn to run westward at a speed of 9 m/s. What is the minimal distance between them and how many seconds after Bradley makes a turn would it happen?
4. A ball is thrown from a top of a building at an angle of 27° from horizontal with an initial speed of 15 m/s. If the ball is in the air for 4 s, determine: a. the height of the building. b. the range where the ball landed on the ground.
1. The motion of an object is defined by the equations x = 10t – 5sin (t) and y = 10t – 5sin cos (t) , where x and y are expressed in feet and t is expressed in seconds. Determine the magnitude of velocity and acceleration of the object at t = 4s.
1. A bus moves 150 m due North, then 100 m due South. What are the bus total distance and displacement?
2. A group of students conducted a projectile experiment in which they fired a projectile at an unknown angle with varying speed. Students took the following data for projectile range and speed. Determine: a. What kind of graph comes out if initial velocity vs. range is plotted? R(m) Volm/s) 0.2 1.71 0.4 2.42 0.6 2.97 0.8 3.43 3.83 1.2 4.2 1.4 4.53 1.6 4.84 1.8 5.14 2 5.42 b. What is the linearization method for this graph? c. Make the linearized graph and determine its slope with its units. d. Determine the initial angle at which the projectile was launched.
1. 3.A helicopter blade spins at exactly 100 revolutions per minute. Its tip is 5.00 m from the center of rotation. (a) Calculate the average speed of the blade tip in the helicopter's frame of reference. (b) What is its average velocity over one revolution? 2. Acceleration is the change in velocity over time. Given this information, is acceleration a vector or a scalar quantity? Explain. 3. A commuter backs her car out of her garage with an acceleration of (a) How long does it take her to reach a speed of 2.00 m/s? (b) If she then brakes to a stop in 0.800 s, what is her deceleration
A group of hikers sets out going 10.0km [N], then 15.0km [E], then 4.0km [S]. The entire trip takes 4.00h. Determine the magnitude hikers' velocity for the trip. 4.04 km/h [N 21.8° E] 5.25 km/h [N 21.8° E] 7.25 km/h [N 21.8° E] 21.0 km/h [N 21.8° E] 65.25 km/h [N 21.8° E]