A 2kg rock is thrown horizontally from the top of a building
that is 20m high....
A 2kg rock is thrown horizontally from the top of a building
that is 20m high. The rock’s initial horizontal velocity is 5m/s.
When the rock is halfway to the ground, what is the net force on it
(including direction)?
How long did it take for the rock in problem 1 to hit the
ground?
How far from the base of the building did the rock in problem 1
hits?
A rock is thrown from the edge of the top of a 5 m tall building
at angle of 45° above the horizontal. The rock strikes the ground a
horizontal distance of 8 m from the base of the building. Assume
that the ground is level and that the side of the building is
vertical. Determine the speed with which the rock was throw
a ball was thrown straight upward from the top of a building 120
ft high at a rate of 24 ft/s. answer the following questions
(acceleration is -32 ft/s^2 )
a. at what time t does the ball reach its maximum height?
b. what is the velocity of the ball at 3 seconds?
c. how long does it take for the ball to hit the ground?
d. what is the velocity of the ball when it hits the ground?
A ball is thrown from the top of a building at an angle of
30degrees above the horizontal and with an initial speed of 20m/s.
if the ball is in flight for 4seconds A) how tall is the building?
b)what horizontal distance does the ball travel? c) what maximum
height does the ball reach? d)with what speed and angle of impact
does the ball land?
Problem A stone is thrown from the top of a
building with an initial velocity of 24.3 m/s straight upward, at
an initial height of 53.1 m above the ground. The stone just misses
the edge of the roof on its way down, as shown in Figure
2.20.
(a) Determine the time needed for the stone to
reach its maximum height.
(b) Determine the maximum height.
(c) Determine the time needed for the stone to
return to the height from...
A stone is thrown from the top of a building at an angle of
-20.0 degrees relative to the horizontal with an initial velocity
of 30.0 m/s. The building is 65.0 m tall. 1. Determine how long the
stone is in the air 2. Determine the speed of the stone right
before it hits the ground. 3. determine the angle of velocity with
respect to the x-axis at impact. 4. Determine where the stone
strikes the ground.
a Ball is thrown upward from the top of a 23.5 m building with a
speed of 12.4 m/s. ignore air resistance
A) draw and label a figure with a coordinate system showing the
balls initial position and initial velocity.
B) write down the proper equations of motion and replace all
known initial conditions and constant values with their appropriate
numerical values to find the following
C)to what maximum height above the ground will the ball
rise?
D) how much...
A)
a tiger leaps horizontally from a 7.5 m high rock with a speed of
3.0 m/s. how far from the base of the rock will she land?
B) how fast was the tigger moving when landed?
1. A ball is thrown from the top of a 50 m high cliff with a
velocity of 10 m/s @ 30o. a. What is the time to the maximum height
and what is the max height? b. How long does the ball take to hit
the ground? c. What is the velocity of the ball when it hits the
ground? d. What is the horizontal range when the ball hits the
ground (total x)?
2. Consider the initial velocity...
A 700 gram ball is thrown from the top of a 25 meter tall
building. The ball is thrown with an initial speed of 10 m/s at an
angle 30 degrees above the horizontal. For our conservation of
energy calculations, we will choose the Ball + Earth as our system
and use the ground as h = 0.
The kinetic energy of the ball when it is thrown
= J.
When the ball reaches its highest point the kinetic energy is...
A ball is thrown vertically upward from the top of a building
112 feet tall with an initial velocity of 96 feet per second. The
distance s (in feet) of the ball from the ground after t seconds
is s (t) = 112 + 96t - 16t2 Complete the table and discuss the
interpretation of each point. t s(t) Interpretation 0 0.5 1 2 100
100 200 200 Answer these questions. After how many seconds does the
ball strike the...