A 7kg ball is thrown from the ground at 20m/s at an angle of 53
degrees...
A 7kg ball is thrown from the ground at 20m/s at an angle of 53
degrees above the horizontal. what is the speed of the ball when it
lands on the roof of a building that is 12m tall?
A ball is projected at an angle of 53 degrees and a
speed of 30m/s from the top of a cliff on Venus. The ball lands
onto the flat, level ground below the cliff and 100m from the base
of the cliff. how tall is the cliff? gravity on venus is equal to
8.87m/s^2
A ball is thrown at a 60.0° angle above the horizontal across
level ground. It is released from a height of 2.00 m above the
ground with a speed of 16.0 m/s. How long does the ball remain in
the air before striking the ground?
Please explain why variables are positive and negative in
relation to direction positive or negative.
A ball is thrown upwards from the roof of a house that is 20m
tall. The initial velocity V0 is 10m/s, and the
acceleration due to gravity g is 10m/s2.
Find:
a) The maximum height that the ball reaches in the air.
b) The total time of flight.
c) The hitting velocity (the velocity right before the ball hits
the ground).
d) Its velocity at t=2s.
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 ground. You observe the ball
through a window on its way up, and notice it was visible for 2
seconds while it travels from the bottom of the window to the top,
which is a length of 43.42 metres.
a) How much time does it take for the ball to be seen again (in
seconds)?
b) How far above top of window will the ball reach (in
metres)?
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?
1) A ball is thrown from the top of a roof at an angle of 20 o
with respect to the vertical. 1 s later a ball is dropped from the
top of the roof
a) If the height of the roof is 20 m, determine the velocity
with which the first ball must be thrown in
order for both balls to land at exactly the same time.
b) Imagine the velocity of the first ball is now known, and...
A stone is thrown from ground level at an angle of θ above the
horizontal such that the ratio of the x-component of its initial
velocity to the y-component of its initial velocity is 2. The stone
strikes a wall 6 m away and at a height of 2 m above the ground.
Calculate the initial speed of the stone
A ball is thrown upward with initial velocity v0 = 15.0 m/s at
an angle of 30° with the horizontal. The thrower stands near the
top of a Jong hill which slopes downward at an angle of 20°.
Determine how far down the slope the ball strikes.