Question

A rock is thrown from the top of a building 80 m high, with a speed of 14 m/s at an angle 25 degrees above the horizontal. When it hits the ground, what is the magnitude of its velocity (i.e. its speed).

Answer #1

A marble is thrown horizontally with a speed of 22.1 m/s from
the top of a building. When it strikes the ground, the marble has a
velocity that makes an angle of 46 ° with the horizontal. From what
height above the ground was the marble thrown?

rock thrown upward with an initial speed of 24.5 m/s
from the top of a 50m tower.
a. what's the rockets velocity the instant it hits the
ground?
b. how long is it in the air?
c. what's the max height above the building the ball
reaches?

A 4.1-kg ball is thrown from the top of a 4-m tall building
(point A) with a speed of 1 m/s at an angle 2 degrees above the
horizontal. If air resistance is negligible, what is the value of
the kinetic energy of the ball as it hits the ground?

A ball is thrown horizontally with an initial speed of 50m/s
from the top of a building 60m tall
a) How far away from the building will the ball hit the
ground?
b) What is the horizontal component of its velocity when it hits
the ground?
c) Find the magnitude and direction of the velocity when it hits
the ground?

A rock is launched from the top of a building 50 m high at an
angle of 30o with a speed of 20 m/s. (a) How far from
the building does the rock land? (b) What is the rock's maximum
altitude as measured from the ground? (c) What is the velocity of
the rock just before landing?

1. A rock is thrown vertically with a speed of 18m/s from a high
vantage point. It has a speed of 25m/s when it hits the ground.
Calculate the height at which it was initially thrown.
2. A baseball comes off the bat at some angle above horizontal
at an initial speed of 38m/s. Calculate its speed when it is 16m
higher than the bat.

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 ball is thrown off the top of a 75 ft high building. If it
strikes the ground 60ft away from the building 3 seconds later,
determine the initial velocity, the angle at launch and the
magnitude of the ball's velocity when it hits the ground

A rock is projected from the edge of the top of a building with
an initial velocity of 12.2 m/s at an angle of 53° below the
horizontal. The rock strikes the ground a horizontal distance of 25
m from the base of the building. Assume that the ground is level
and that the side of the building is vertical. How tall is the
building?

1. Two identical eggs were thrown at the same time from the top
of a building of height 100 m at a speed 20. One egg was thrown at
an angle 40° above the horizontal while another was thrown at the
same angle but below the horizontal. How long does it take for the
other egg to hit the ground after the one of the eggs hits the
ground?
Does the time difference between the eggs hitting the ground
depend...

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