Question

An
object is thrown upwards from certain level with a speed of
20.0m/s. A person at a window observes the object going up, and
when it returns down he catches it at point 5.00m over the starting
level. Determine the time of the object in the air.

Answer #1

an object of 1.9 kg of mass is thrown vertically upwards with an
initial velocity of 5.50 m / s, assuming that the friction forces
are minimal, then:
A. Determine the value of the kinetic energy at the moment when
the object is thrown upwards.
B. If the moment the object leaves the hand is taken as the zero
height, determine the value of the potential energy at that
point.
C. Determine the highest point that the object reaches.
D....

a thrown ball with mass of 0.15 kg has an initial
speed of 3m/s upwards. how high up can it travel if the air
resistance does -0.1 J of work on it

a stone is thrown vertically upwards with an initial
speed of u, its vertically displacement s after an elapsed time t
is given by the formular s= ut - gt^2/2 where g is the acceleration
due to gravity air resistance is ignored, calculate the value of s
over a period of 12.3 seconds at intervals of 0.1 seconds
. and plot the distance time graph over this period by writing
matlab/ octave code that implements and solves rhis problem.

A 2.0 kg ball is thrown upward with an initial speed of 21.0 m/s
from the edge of a 48.0 m high cliff. At the instant the ball is
thrown, a woman starts running away from the base of the cliff with
a constant speed of 5.80 m/s. The woman runs in a straight line on
level ground. Ignore air resistance on the ball. How far does she
run before she catches the ball? (Your result must be in units...

An object is thrown downward with a speed of 5.00 m/s from a
location 19.6 m directly above the ground. How long does it take
the object to reach the ground? [Assume there is no air
resistance.]
Please can you go step by step. Thansk

A 2.0 kg ball is thrown upward with an initial speed of 24.0 m/s
from the edge of a 46.0 m high cliff. At the instant the ball is
thrown, a woman starts running away from the base of the cliff with
a constant speed of 5.80 m/s. The woman runs in a straight line on
level ground. Ignore air resistance on the ball. How far does she
run before she catches the ball? (Your result must be in units...

An object with a mass of 40.0 kg is fired with an initial speed
of 1.28 x 102 m/s at an angle of 30.0° above the
horizontal from a 116 m high cliff (take ground level to be
y = 0 m).
(a) Determine the initial total mechanical energy of the
projectile.
(b) If when the projectile is at its maximum height of
y = 287 m, it is traveling 90.7 m/s, determine the amount
of work that has been...

A basketball player is running at a constant speed of 2.5m/s
when he tosses a ball upward with a speed of 6.0m/s. Ignore air
resistance.
1.)Determine the magnitude and direction of the basketball’s
velocity initially, when the ball left the player’s hand.
2.)Determine the vertical displacement of the ball away from the
player’s hands.
3.)Determine the time of flight of the ball given that it
returns to the player’s hand at the same vertical level.
4.)How far does the player...

A rock is thrown over level ground, with an initial speed of
30m/s, at an angle of 35degrees above the horizontal. If we ignore
air resistance, how long does it spend in the air?
A.
2.1s
B.
0.5s
C.
1.2s
D.
3.5s

A rock is thrown straight upwards from the top of the tower/ At
the instant when the rock is released from the thrower's hand, the
rock is 25m above the ground and moving straight upwards. Just
before the rock crashes into the mud, it is moving straight
downwards at 24.3 m/s. Assume air resistance is negligible. After
the rock reached the muddy ground, the rock continued to move
downwards, embedding itself .2m deep in the muddy ground before
coming to...

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