What is an example of instantaneous speed

A rock is thrown straight down from a cliff at a velocity of 3.7 m/s and hits the ground below after 1.8 seconds. What was the velocity of the rock just before hitting the ground?

A particle starts from rest and accelerates as shown in the figure below. az (m/s²) 1 t (s) 10 15 20 -1 -2 -3 (a) Determine the particle's speed at t = 10.0 s. m/s Determine the particle's speed att = 20.0 s? m/s (b) Determine the distance traveled in the first 20.0 s. (Enter your answer to one decimal places.) m

Page > of 4 22. The accompanying graph shows Marie's distance from home (A) to work (F) at various times during her drive. Marie's Trip to Work 20 15 10 DE 10 15 20 25 30 35 40 Time (min) Marie left her briefcase at home and had to return to get it. State which point represents when she turned back around to go home and explain how you arrived at that conclusion. a b. Marie also had to wait at the railroad tracks for a train to pass. How long did she wait? MacBook Air 50 F3 I F8 > F9 5 FIO 44 F7 F5 %23 %24 & 3 4. 5 8 R Y D F H. K 60 (ju) ewoH woJj eouejsic

Kalea throws a baseball directly upward at time t = 0 at an initial speed of 14.5 m/s. How high h does the ball rise above its release point? Ignore air resistance and use g = 9.80 m/s². h = m

Q4. A stone was dropped from a cliff of height 100 m. Ignoring air resistance, how long will it take the stone to reach ground? juaiļ, o ú 49 49 =4 t -4.9t Q5. A stone was dropped from a cliff of height 100 m. Ignoring air resistance, what will be the final speed of the stone when it reaches ground? Q6. An object has an initial velocity of 8 m/s and acceleration of 2 m/s?, how far the object will move in 10 seconds?

Billy drops a watermelon from the top of a three-story building, 10 m above the sidewalk. How fast is the watermelon going when it hits?

A rock is ejected from a volcano with an inital velocity of 43.8 m/s. How high will the rock reach before falling down? Air resistance doesn't have an effect.

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You slam on the gas of your racecar and you accelerate at 12 m/s2 from rest to a final velocity of 48 m/s How far will you travel during this acceleration. There IS enough information to find the answer, use your tools.