A skater uniformly decreased her velocity from 6 m/s to zero (braking to a stop) over a distance of 12 meters. What will her acceleration be?

Q: A plane is flying at a velocity of 12m/s, if this accelerates and it reaches a velocity of 20m/s,…

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Q: A ball drops from rest picks up speed at 10m/s per second . After it falls for 4seconds how fast is…

A: Given: increase in speed per second= 10 m/s therefore acceleration= change in speedtime taken= 10…

Q: The relative velocity of the air acting on a cyclist moving at 6 m/s into a headwind of 1 m/s is

A: velocity of cyclist = 6 msvelocity of headwind = 1 ms

Q: What is the difference between acceleration, velocity, and speed?

A: Acceleration: It is the rate of change of velocity of an object with time. It is a vector quantity.…

Q: A stone is thrown vertically upward with a velocity of 40 feet per second from the top of a tower…

A: Answer:-  Given  When the stone is thrown vertically upwards.  Initial velocity (u) = 40 feet per…

Q: Arockis thrown straight down from a cliff at a velocity of 3.7m/s and hits the ground below after…

A: Given Data: Initial velocity is u = 3.7 m/s Time taken t= 1.8 s

Q: You take a running leap of a high-diving platform. You were running at 2.8 m/s and hit the water…

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Q: Aball is thrown downward from the top of a roof with a speed of 25 m/s .After 2 s , its velocity…

A: The given data are: u=-25 m/st=2 s Here, u denotes the initial speed and t denotes the time.

Q: How much distance does he travel ?

A: Given data; Speed of men=20 ms-1Time taken by him=60 minFind distance does he travel ?

Q: if mr.berkley is able to slow down his car from 21 m/s to 8m/s while covering 25 meters, what was…

A: Let the mass of the car be m. Apply the third kinematic equation.

Q: Show that the average speed of a rabbit that runs a distance of 30 m in a time of 2 s is 15 m/s.

A: The expression for the average speed is,

Q: You measure the acceleration of a METRA train to be a = 0.58 m/s/s. If you are standing at the front…

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Q: Show that average speed of a rabbit that turns a distance of 30m in a time of 2s is 15m/s?

A: Given information:The total distance travelled by the rabbit (s) = 30 mTotal time take (t) = 2 s

Q: If a skydiver jumps from a plane and free falls, what is their velocity after 20 seconds?

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Q: Suppose you bungee jump with a 100 meter long rope. How fast are you going after you have fallen 50…

A: If I bungee jump then I fall with acceleration a = g = 9.8 m/s2

Q: When will a stone thrown vertically upward at 10 m/s reach the ground?

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Q: What is the acceleration of a car that goes from 10 m/s to 50 m/s in 8.3 seconds?

A: Given data: Initial velocity (v0) = 10 m/s Final velocity (v) = 50 m/s Time (t) = 8.3 s Required:…

Q: If objects in motion tend to stay in motion,why don't moving objects keep moving forever?

A: If the forces on an object are equal and opposite, which are said to be balanced, and the object…

Q: would

A: The kinematics equation can be used to find the unknown parameters such as final velocity, distance…

Q: If objects in motion tend to stay in motion, why don't moving objects keep moving forever?

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Q: A stone is thrown upward from the top of a tower 50 meters high. Its velocity in an upward direction…

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Q: Which has greater deceleration, a bicycle slowing from 3 m/s to a stop in 6 seconds or a car slowing…

A: Given data: Initial speed of bicycle is, u=3 m/s. Final speed of bicycle is, v=0 m/s. Time interval…

Q: A south African frog is capable of jumping as far as 10 m in one hop. Suppose he made 5 of these…

A: Velocity of of an object  is defined as the displacement or distance  covered per unit time. It is…

Q: A ball is dropped from a building 100m high. If the mass of the ball is 10 grams, after what time…

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Q: body falls for a time

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Q: If you shoot a 10 kg cannonball straight it reaches a height of 600 meters, what was the velocity of…

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Q: What is the relationship between acceleration and velocity?

A: solution is given as

Q: A marble drops down from a table. Right before hitting the ground, its velocity is 4.2 m/s. If air…

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Q: Tisn. ast the speeds of the formerly hungry

A: Let the mass of small fish =1kg Mass of hungry fish = 5kg (A) 5kg×4m/s + 1kg×0 = (5kg +1kg)v 20kgm/s…

Q: If a cheetah can reach his top speed of 93 km/h in just 3 seconds from rest, what is its…

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Q: A plane is flying at a velocity of 12m/s, if this accelerates and it reaches a velocity of 20m/s,…

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Q: A train accelerates uniformly from a velocity of 2 m/s to a velocity of 10 m/s after travelling…

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Q: How fast will a penny hit the ground if it is dropped from the rooftop of a 291-meter-high building?

A: The final speed, v of a object after it covers a distance x, moving with a intial speed, u and…

Q: A person riding their bicycle accelerates to a speed of 19.0 m/s over a distance of 298 meters. If…

A: Let the initial velocity of the person be u = 0, the final velocity of the person be v, the distance…

Q: If a car is moving at 50mph and it rounds a corner, also at 50mph, does it maintain a constant…

A: Initial speed of car = 50 mph After taking a round at a corner, new speed of car = 50 mph

Q: Why do we disregard air resistance when calculating velocity?

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Q: What is the acceleration of a basketball starting at 30 m/s and then being CAUGHT after 2 seconds?

A: Given: u = 30 m/s, v = 0 m/s, t = 2 s

Q: A skydiver jumps from a helicopter hovering at high altitude. Neglecting air resistance, how fast…

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Q: What is the speed at impact of a stone that is dropped from a height of 60 meters?

A: Given data: Height of the stone, h=60 m

Q: what constant acceleration will bring an automobile traveling 60 miles per hour to rest in 160 feet?

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Q: If a car is intially traveling at 27 m/s and decelerates at a rate of 4.5 m/s2 how fast would it be…

A: Initial speed of the car,  Acceleration of the car,  Time interval,    Applying the first equation…

Q: If a baseball (m=.450 kg) is thrown up with a velocity of 8 m/s, how many meters high will it reach?

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Q: If a baseball is dropped from a skyscraper, what will its speed (velocity) be after 4.5 seconds…

A: let baseball is dropped with zero initial velocity u=0 since there is no air resistance a=g=9.8 m/s2…

Q: Calculate the final velocity of a car starting from rest, and accelerating for 10 seconds at 3.5…

A: initial velocity u = 0 m/s acceleration a = 3.5 m/52 time taken t = 10 s Let V be the final…