horizontal from the building's edge. If the building's height is 50 m, a) how long does it take the ball to reach the ground? b) Calculate the ball's speed just before it strikes the ground.

University Physics Volume 1
18th Edition
ISBN:9781938168277
Author:William Moebs, Samuel J. Ling, Jeff Sanny
Publisher:William Moebs, Samuel J. Ling, Jeff Sanny
Chapter4: Motion In Two And Three Dimensions
Section: Chapter Questions
Problem 76P: A small plane flies at 200 km/h in still air. If the wind blows directly out of the west at 50 km/h,...
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1. A ball is thrown upward with a speed of 20 m/s with an angle of 30 degrees to the
horizontal from the building's edge. If the building's height is 50 m, a) how long does it take
the ball to reach the ground? b) Calculate the ball's speed just before it strikes the ground.
2. A car with an increasing speed rate of 0.600 m/s? is traveling along a circular road. The
radius of the circular road is 20 meters. When the car's speed is 4 m/ s, find the acceleration
a) normal to the radius, b) along to the radius, and c) the magnitude and direction of the total
acceleration.
3. An animal has a coordinates of (1.1 m, 3.4 m) at time t, = 0 and when t2 = 3.0 s, it is
located at (5.3 m, -0.5 m). For this time interval, find (a) the components of the average
velocity, and (b) the magnitude and direction of the average velocity.
Transcribed Image Text:1. A ball is thrown upward with a speed of 20 m/s with an angle of 30 degrees to the horizontal from the building's edge. If the building's height is 50 m, a) how long does it take the ball to reach the ground? b) Calculate the ball's speed just before it strikes the ground. 2. A car with an increasing speed rate of 0.600 m/s? is traveling along a circular road. The radius of the circular road is 20 meters. When the car's speed is 4 m/ s, find the acceleration a) normal to the radius, b) along to the radius, and c) the magnitude and direction of the total acceleration. 3. An animal has a coordinates of (1.1 m, 3.4 m) at time t, = 0 and when t2 = 3.0 s, it is located at (5.3 m, -0.5 m). For this time interval, find (a) the components of the average velocity, and (b) the magnitude and direction of the average velocity.
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