2. A projectile is thrown upward with an initial velocity vo at an angle 0 withthe horizontal. Which of the following is true for the projectile and itsmaximum height?a. velocity = 0; acceleration0; acceleration%3D%3Db. velocity6-c. velocity = v. sine; acceleration = 0d. velocity = v. cose; acceleration = -g%3D%3D3. A ball is thrown upward at an angle of 60° with the horizontal. In theabsence of air resistance, its range would be less than that of a projectilethrown at an angle of,а. 100b. 30°C. 43°d. 70°

2) at maximum height velocity is only in x direction which is equal to Vx = V0Cosθ a = -g Option…

Answered: 2. A projectile is thrown upward with…

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter3: Two-dimensional Kinematics

Section: Chapter Questions

Problem 46PE: A basketball player is running at 5.00 m/s directly toward the basket when he jumps into the air to...

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A basketball player is running at 5.00 m/s directly toward the basket when he jumps into the air to dunk the ball. He maintains his horizontal velocity. (a) What vertical velocity does he need to rise 0.750 m above the floor? (b) How far from the basket (measured in the horizontal direction) must he start his jump to reach his maximum height at the same time as he reaches the basket?
A ball is thrown straight upward and returns to the throwers hand after 3.00 s in the air. A second ball thrown at an angle of 30.0 with the horizontal reaches the same maximum height as the first ball, (a) At what speed was the first ball thrown? (b) At what speed was the second ball thrown?
A placekicker must kick a football from a point 36.0 m (about 40 yards) from the goal. Hall the crowd hopes he ball will clear the crossbar, which is 3.05 m high. When kicked, the ball leaves the ground with a speed of 20.0 m/s at an angle of 53.0 to the horizontal. (a) By how much does the ball clear or fall short of clearing the crossbar? (b) Does the ball approach the crossbar while still rising or while falling?
A World War II bomber flies horizontally over level terrain with a speed of 275 m/s relative to the ground and at an altitude of 3.00 km The bombardier releases one bomb. (a) How far does the bomb travel horizontally between it release and its impact on the ground? Ignore the effects of air resistance. (b) The pilot maintains the planes original course, altitude, and speed through a storm of flak. Where is the plane when the bomb hits the ground? (c) The bomb hits the target seen in the telescopic bombsight at the moment of the bombs release. At what angle from tin- vertical was the bombsight set?
A ball is thrown straight upward and returns to the throwers hand after 3.00 s in the air. A second ball thrown at an angle of 30.0 with the horizontal reaches the same maximum height as the first ball, (a) At what speed was the first ball thrown? (b) At what speed was the second ball thrown?
Horizontal Projectile- A blow dart is shot from a height of 8.00 meters and travels a distance of 12.0 meters. What is the initial x-velocity? What are the components of velocity (Vx and Vy) and angle as the dart hits the ground? What is the total velocity as the dart hits the ground?
A father demonstrates projectile motion to his children by placing a pea on his fork's handle and rapidly depressing the curved tines, launching the pea to heights above the dining room table. Suppose the pea is launched at 7.35 m/s at an angle of 71.0° above the table. With what speed (in m/s) does the pea strike the ceiling 1.90 m above the table?
A projectile fired from a gun at the angle 75.0 degrees above the horizontal direction has an initial velocity equal to 35m/s. A- what are the vertical and horizontal components of the acceleration of the projectile? B- what is the maximum height the projectile will travel too? C- how far away the projectile will hit the ground?
A projectile was launched from the top of a 25-m high building at a velocity of +35 m/sand at an angle of 28o with the horizontal.(a) How far is the projectile from the building (horizontally) by the time it reaches itsmaximum height? (Ans.: 51.82 m)
A baseball is hit with a speed of 26 m/sm/s at an angle of 45.0∘∘ . It lands on the flat roof of a 13.0-mm-tallnearby building.If the ball was hit when it was 1.0 mm above the ground, what horizontal distance does it travel before it lands on the building?
12. • A diver runs horizontally off the end of a diving board withan initial speed of 1.85 m/s. If the diving board is 3.00 m abovethe water, what is the diver’s speed just before she enters the water? Graph and Explain.
A rocket is launched at an angle of 58.0° above the horizontal with an initial speed of 104 m/s. The rocket moves for 3.00 s along its initial line of motion with an acceleration of 30.0 m/s2. At this time, its engines fail and the rocket proceeds to move as a projectile. What is the total time of flight? What is the horizontal range?

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