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A ball is dropped from a cliff and has acceleration of 9.8ms2 How long will it take the ball to reach a speed of 22.8ms?
Wiki User
∙ 14y ago
The objective is to calculate the final velocity of 22.8m/s.
We can use the formula v = u+at
v is th final velocity
u is the initial velocity which is equal to 0 in this case
a=9.8m/s2( given)
t is the time for achieving the final velocity
22.8 = 0+9.8 t
t=22.8/9.8
t=2.3 seconds
Wiki User
∙ 14y ago
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A person on a very high cliff throws a ball vertically up at an initial speed of 13.0 ms Neglect friction whats the speed at the highest point the acceleration at the highest point?
It depends on how height the cliff is. I could figure it out if you told me how height the cliff is.
A 12 kg rock falls from rest off a cliff and hits the ground in 1.5 s What is the velocity?
The acceleration of gravity is 9.8 meters/sec2.In 1.5 seconds after it's dropped, any object is falling at (9.8 x 2) = 19.6 meters/sec.The mass of the rock makes no difference.
Does a rock falling from a cliff have a constant acceleration?
Yes. Every body that is falling, (if there is no other force then the gravity force) will fall in constant acceleration. Mass does not affect the acceleration of the body. According to Newton's second law: F=m*a m*g=m*a g=a F= Force m= mass a= acceleration g= gravity acceleration m*g= the force of gravity
How can the gravitational potential energy of an object be increased?
By moving an object higher up. A ball dropped off a 100 foot cliff has higher potential energy than a ball dropped off a 4 foot tall desk.
When riding in an elevator why does a person appear to lose weight when accelerating downward?
Weight is felt by the body resisting the pull (acceleration) of gravity. Less acceleration means less pull thus less weight. The rate at which you are accelerating downward subtracts from the pull of gravity, thus your weight is less. If you fall, say from a cliff or tall building you accelerate downward at exactly the acceleration of gravity so you're completely weightless.
A ball is dropped off a cliff and reaches a speed of 29.4 meters per second after 3.0 s What is the balls average acceleration?
29.4/3=9.8m/s2
A rock is dropped from a cliff and hits the ground 6.0 seconds later How high is the cliff?
176.4 meters
A stone was dropped off a cliff and hit the ground with a speed of 96 ft per second what is the height of the cliff?
240 ft
Suppose a rock is dropped off a cliff with an initial speed of 0 ms What is the rocks speed after 3 seconds in ms if it encounters no air resistance?
The acceleration of gravity is 9.8 m/s2Speed after 3 sec = (9.8 x 3) = 29.4 m/s
Item is dropped off a cliff Gravity immediately grabs hold of it at 9.8 meters per second squard Impact is 9.36 seconds How high is the cliff in meters Assume no air resistance?
Using the formula s = ut + 1/2at2, where s is the distance travelled, u is the initial velocity, a is the acceleration and t is the time , then :-s = 0 + [1/2 x 9.8 x (9.36)2] = 429.29 meters (2dp)The cliff is 429.29 meters high.
A person on a very high cliff throws a ball vertically up at an initial speed of 13.0 ms Neglect friction whats the speed at the highest point the acceleration at the highest point?
It depends on how height the cliff is. I could figure it out if you told me how height the cliff is.
A 12 kg rock falls from rest off a cliff and hits the ground in 1.5 s What is the velocity?
The acceleration of gravity is 9.8 meters/sec2.In 1.5 seconds after it's dropped, any object is falling at (9.8 x 2) = 19.6 meters/sec.The mass of the rock makes no difference.
If a Rock is dropped off a cliff with an initial speed of 0 ms What is the rock's speed after 3 seconds in ms if it encounters no air resistance?
speed is decided by v = a(t), where t is your time variable and a is your acceleration constant. after 3 seconds, your velocity v = (9.8m/s2)(3s) = 29.4m/s
Does Simba get dropped off the cliff at the start of the lion king to which the Simba is then re-cast for a different cub?
Yes, yes it does.
What is the summaryof poem jago phir ek baar samr by suryakant tripathi?
balls dropped right off as cliff
Does a rock falling from a cliff have a constant acceleration?
Yes. Every body that is falling, (if there is no other force then the gravity force) will fall in constant acceleration. Mass does not affect the acceleration of the body. According to Newton's second law: F=m*a m*g=m*a g=a F= Force m= mass a= acceleration g= gravity acceleration m*g= the force of gravity
Suppose a rock is dropped off a cliff with an initial speed of 0 What is the rock's speed after 5 seconds in if it encounters no air resistance?
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