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Suppose a rock in free fall is dropped off a cliff After falling 5 seconds its speed will be 100?
Use the eq'n
a = (v-u) / t
Where
a = accelertion of 9.8 m/s^(2) (Gravitational Acceleration).
v = final velocity ( to be found)
u = initial velocity ( 0 m/s ; the instant you 'let go').
t = time ( 5 seconds.
Substituting
at = v - u
at + u = v
Hence
9.8 m/s^(2) X 5s - 0 = 49 m/s The Answer!!!!!
Note the units are [ m/( s x s )] X s. The 's' cancels down to m/s The velocity.
What else can I help you with?
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?
49
Suppose a rock is dropped off a cliff with an initial speed of 0 ms What is the rock's speed after 5 seconds in ms if it encounters no air resistance?
49
A rock is dropped from a cliff and hits the ground 6.0 seconds later How high is the cliff?
176.4 meters
Suppose a rock is dropped off a cliff with an initial speed of 0 miles per second What is the rock's speed after 5 seconds in miles per second if it encounters no air resistance?
,033
Suppose a rock is dropped off a cliff with an initial speed of 0 m per sec What is the rocks speed after 5 seconds in m per sec if it encounters no air resistance?
9.8m/s(5)= 49
Suppose a rock in free fall is dropped off a cliff after falling 5 seconds what is it speed?
The speed of the rock after falling for 5 seconds would be approximately 49 m/s, neglecting air resistance. This speed is the result of the acceleration due to gravity, which is approximately 9.81 m/s^2.
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?
49
Suppose 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?
29.4
Suppose a rock is dropped off a cliff with an initial speed of 0 ms What is the rock's speed after 5 seconds in ms if it encounters no air resistance?
49
Suppose a rock in free fall is dropped off a cliff after falling 5 seconds it speed will be 100?
The speed of the rock after 5 seconds of free fall would not be 100. The speed of an object in free fall increases by 9.8 m/s every second. After 5 seconds, the speed of the rock would be 49 m/s (approximately), assuming no air resistance.
A rock is dropped from a cliff and hits the ground 6.0 seconds later How high is the cliff?
176.4 meters
Suppose a rock is dropped off a cliff with an initial speed of 0 miles per second What is the rock's speed after 5 seconds in miles per second if it encounters no air resistance?
,033
Suppose a rock is dropped off a cliff with an initial speed of 0 m per sec What is the rocks speed after 5 seconds in m per sec if it encounters no air resistance?
9.8m/s(5)= 49
What is the speed of an object that is dropped off a cliff after 5 seconds and no air resistance with an initial speed of 0 ms?
The speed of an object dropped off a cliff after 5 seconds, neglecting air resistance, is given by the equation: v = gt, where v is the final speed, g is the acceleration due to gravity (9.8 m/s^2), and t is the time it has been falling. Plugging in the values gives v = 9.8 m/s^2 * 5 s = 49 m/s. So, the speed of the object after 5 seconds will be 49 m/s.
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
Suppose a rock is dropped off a cliff with an initial speed of 0 ms. What is the rock's speed after 5 seconds in ms if it encounters no air resistance?
The rock's speed after 5 seconds would be approximately 49 m/s. This is calculated using the formula v = g * t, where v is the final speed, g is the acceleration due to gravity (9.8 m/s^2), and t is the time elapsed (5 seconds).
What are examples of free fall?
An object dropped from a height without any initial velocity, a skydiver falling towards the ground before deploying their parachute, and a rock falling off a cliff are all examples of free fall.
