Question

A ball is thrown from the roof of a building. The initial velocity vector is at...

A ball is thrown from the roof of a building. The initial velocity vector is at an angle of 53.0° above the horizontal. It is at maximum height in 1.04 seconds. Express all vectors in terms of unit vectors i and j. The ball strikes the ground at a horizontal distance from the building of 33.1 meters.
a.) What is the vertical velocity (vector) at t=1.04 seconds?
b.) What is the initial vertical velocity (vector)?
c) What is the inital speed?
d.) What is the initial horizontal velocity (vector)?
e.) What is maximum height of the ball measured from the roof of the building?
f.) What is the horizontal velocity the instant before impact with the ground?
g.) What is the acceleration of the projectile?

Homework Answers

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
A ball is thrown from the roof of a 11-m high building at a velocity of...
A ball is thrown from the roof of a 11-m high building at a velocity of 50 meters per second at an inclination of 65 degrees above the horizon. What is the magnitude of the vertical velocity of the ball (m/s with two decimal places) right before ithits ground level
A ball is thrown from the roof of a 12-m high building at a velocity of...
A ball is thrown from the roof of a 12-m high building at a velocity of 36 meters per second at an inclination of 42 degrees above the horizon. What is the total vertical distance traveled by the ball (m with two decimal places) right before it hits ground level ?
A ball with mass m kg is thrown upward with initial velocity 16 m/s from the...
A ball with mass m kg is thrown upward with initial velocity 16 m/s from the roof of a building 28 m high. Neglect air resistance. Use 9.8 m/s2. Round your answers to one decimal place. (a) Find the maximum height above the ground that the ball reaches. meters (b) Assuming that the ball misses the building on the way down, find the time that it hits the ground.
A ball is thrown vertically upwards with an initial velocity of 10 m/s, from a platform...
A ball is thrown vertically upwards with an initial velocity of 10 m/s, from a platform that is at a height of 75 m above the ground. The ball reaches a maximum height and, on the way down, misses the platform and falls all the way to the ground. Take the magnitude of the acceleration due to gravity to be 10 m/s2. (a) What is the velocity of the ball just before it reaches the ground? (b) How many seconds...
A ball is thrown straight up from the edge of the roof of a building. A...
A ball is thrown straight up from the edge of the roof of a building. A second ball is dropped from the roof a time of 1.17 s later. You may ignore air resistance A. If the height of the building is 20.3 m, what must the initial speed be of the first ball if both are to hit the ground at the same time? Express your answer in meters per second. B. Consider the same situation, but now let...
A stone thrown from the top of the building is given an initial velocity of 8...
A stone thrown from the top of the building is given an initial velocity of 8 m/s at an angle of 20.0o below horizontal. It strikes the ground 3.00 s later. (a) How far horizontally from the base of the building does the stone strike the ground? (b) Find the height from which the stone is thrown? (c) How long does it take the ball to reach a point 10.0 m below the level of launching? (d) What are the...
A rock is thrown straight upward from the top of a building with an initial velocity...
A rock is thrown straight upward from the top of a building with an initial velocity of 15.0 m/s, at an initial height of 45.0 m above the ground. The rock just misses the edge of the building’s roof on its way down. The magnitude of the acceleration due to gravity is 9.79 m/s2 (in Greeley).a. What is the time needed for the rock to reach its maximum height?b. What is its maximum height with respect to the ground?c. How...
A blue ball is thrown upward with an initial speed of 21.2 m/s, from a height...
A blue ball is thrown upward with an initial speed of 21.2 m/s, from a height of 0.5 meters above the ground. 2.6 seconds after the blue ball is thrown, a red ball is thrown down with an initial speed of 11.7 m/s from a height of 25.7 meters above the ground. The force of gravity due to the earth results in the balls each having a constant downward acceleration of 9.81 m/s2. A) What is the speed of the...
A ball is thrown horizontally from the top of a 53.0-m building and lands 119.3 m...
A ball is thrown horizontally from the top of a 53.0-m building and lands 119.3 m from the base of the building. Ignore air resistance. (Assume the ball is thrown in the +x direction and upward to be in the +y direction.) a) How long (in s) is the ball in the air? in s b) What must have been the initial horizontal component of the velocity (in m/s)? (Indicate the direction with the sign of your answer.) in m/s...
A ball with mass 1/9.8 kg is thrown upward with initial velocity 20 m/s from the...
A ball with mass 1/9.8 kg is thrown upward with initial velocity 20 m/s from the roof of a building 30 m high. Assume that the force of air resistance (drag force) is (v^2)/1225. Find the maximum height above the ground that the ball reaches. (Hint: find the velocity v(t) first, then find the height x(t).)