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☆☆☆☆☆Cards in this guide (10)
A ball is thrown horizontally at 20 ms from the top of a cliff 50 meters high How long does it take the ball to reach the ground
Use the equation [ D = 1/2 g t2 ] .
D = the distance of free-fall = 50 m
g = acceleration of gravity = 9.8 m/sec2
t = time in free-fall
D = 1/2 g t2
2D / g = t2
t = sqrt( 2D / g ) = sqrt( 100 / 9.8 ) = 3.1944 seconds(rounded)
The horizontal velocity that the ball has when it's launched doesn't appear
in the calculation, because it makes absolutely no difference in the result.
Any effects of air resistance have been ignored in arriving at this solution.
Two forces act on the same object One force is pushing due east with a force of 6 newtons and the other is pushing due north at 8 newtons What is the resulting force
10 newtons NE. a little more north than east
A ball is thrown horizontally from a cliff at a speed of 15 ms and strikes the ground 45 meters from the base of the cliff How long was the ball in the air
Answer: 3 seconds
What is the vertical component influenced by
Gravity
A ball is thrown horizontally from a cliff at a speed of 15 ms and strikes the ground 45 meters from the base of the cliff How high was the cliff rounded to the nearest meter
Answer: 44 meters
What does a force applied to a stationary object give the object
"Motion" or "Momentum"
What does the amount of force times the time applied equal
impulse
A player kicks a soccer ball from ground level and sends it flying at an angle of 30 degrees at a speed of 26 ms
Yes your question is.......................
What term is given to the net figure that results from vector
resultant
A golfer tees off and hits a golf ball at a speed of 31 ms and at an angle of 35 degrees. What is the vertical velocity component of the ball Round the answer to the nearest tenth of a ms.
I don’t know but add my Instagram @0baby_dxnni0
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