Question

URGENT

A ball is thrown vertically upward from the edge of a cliff,
with an upward velocity of 20 m/s. On its way back down, it just
misses the end of the cliff.

(a) Find the position and velocity of the ball 1 s and 4 s
after it is thrown;

(b) Find the velocity of the ball when it is 5 m above the
flat surface of the cliff. Write the magnitude of the velocity in
the Answer box below (unit m/s);

(c) Find the maximum height reached and the time at which it
is reached;

(d) Draw the position-time, velocity-time and
acceleration-time graphs for this throw (three separate
graphs).

Ignore the effects of the air.

Answer #1

A ball is thrown vertically upward from the edge of a cliff,
with an upward velocity of 20 m/s. On its way back down, it just
misses the end of the cliff.
(a) Find the position and velocity of the ball 1 s and 4 s
after it is thrown;
(b) Find the velocity of the ball when it is 5 m above the
flat surface of the cliff. Write the magnitude of the velocity in
the Answer box below...

A
stone thrown vertically on Mars. Suppose a stone is thrown
vertically upward from the edge of a cliff on Mars (where the
acceleration due to gravity is only about 12 ft/s^2) with an
initial velocity of 64 ft/s from a height of 192 ft above the
ground. The height S of the stone above the ground after t seconds
is given by s=-6t^2+64t+192
a. Determine the velocity v of the stone after t seconds
b. When does the stone...

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 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 buildingâ€™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, mass is 8 kg, is thrown from the top of a 30 m cliff
with a velocity of 20 m/s straight up. The ball misses the cliff on
the way down. Ignore air resistance. Use work and conservation of
energy to find the following values.
a. what is the work done by gravity while the ball is in the
air?
b. what is the maximum height of the ball?
c. what is the magnitude of the velocity just...

A
stone is thrown from the top of a cliff with the initial velocity
of 20.0 m/s straight upward. The cliff is 50.0 m high and the stone
just misses the edge of the cliff on its way down. Determine (a)
the time needed for the stone to reach its maximum height; (b) the
maximum height, as measured from the ground; (c) the time needed
for the stone to return to the level of the thrower; (d) the
velocity of...

A ball is thrown vertically upward, which is the positive
direction. A little later it returns to its point of release. The
ball is in the air for a total time of 7.4 s. How long does the
ball take to reach its maximum height?
A ball is thrown vertically upward, which is the positive
direction. A little later it returns to its point of release. The
ball is in the air for a total time of 7.4 s. What...

A stone is thrown vertically upward with a speed of 15.0 m/s
from the edge of a cliff 75.0 m high.How much later does it reach
the bottom of the cliff?What is its speed just before hitting?What
total distance did it travel?

if a ball is thrown vertically upward with a velocity of 95
ft/s, then its height after t seconds is
s=95t-19t^2
A. what is maximum height reached by the ball?
B. what is the velocity of the ball if its 114 ft above the
ground on the way up?
C. what is the velocity of the ball when it is 114 above the
ground on its way down?

A ball is thrown directly upward from the edge of a
rock and travels such that after t seconds its height in feet above
the ground is given by the equation s(t) =-2.5t^2+10t+2
1.Find the equation that represents the instant
velocity v(t) of the ball on t time.
2.When does the ball has zero velocity?
3. What is the maximum height that the ball
reaches?
4. When does the ball touches the surface of the
Earth?
5. build the graph...

ADVERTISEMENT

Get Answers For Free

Most questions answered within 1 hours.

ADVERTISEMENT

asked 17 minutes ago

asked 17 minutes ago

asked 22 minutes ago

asked 34 minutes ago

asked 39 minutes ago

asked 43 minutes ago

asked 51 minutes ago

asked 58 minutes ago

asked 1 hour ago

asked 1 hour ago

asked 2 hours ago

asked 3 hours ago