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

Q: A stone is thrown hotrizontally with an initial speed of 10 m/s from the edge of a cliff. A stop…

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Q: A child is riding a bicycle at 15 m/s accelerates at 3.0 m/s/s for 4.0 s. What is the child's speed…

A: Velocity of the bike is u = 15 m/s Acceleration of the child is a = 3 m/s2 Time period of the child…

Q: Two stones were dropped at a cliff that is 75m high. The second stone was dropped 1.4s after the…

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Q: A plane travels 395,000 meters in 9000 seconds. What was its speed?

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Q: Gladys leaves a town driving at a rate of 40 miles per hour. Two hours later, Reena leaves from the…

A: The speed is given by,  s=dt It is given that Glady's driving at a rate of 40 miles per hour. That…

Q: There were 2 boys standing on top of a bridge. The 1st boy drops a 1.5kg rock while the 2nd boy…

A: h=ut+0.5gt2

Q: A driver of a car hits its brakes and begins to decelerate. If the velocity changes from 60 m/s to…

A: Initial velocity u=60 msFinal velocity v=20 mstime t=6 secs

Q: Bobby Gente drives a car that travels a distance of 540 km in 6.0 hours. How fast was bobby's car…

A: total distance D=540 km assuming Bobby Gente drives continuously ,total time taken t= 6.0 h

Q: A 2,000kg car is moving at 30m/s hits a 1,500kg car moving at 12m/s going in the same direction. The…

A: The given values are, m1=2000 kgv1=30 m/sm2=1500 kgv2=12 m/s

Q: Complete the sentences to describe the difference between speed and velocity Speed describes how…

A: Speed is a scalar physical quantity and velocity is a vector physical quantity.

Q: A ship is moving at a speed of 56km/h. One second later, it is moving at 58km/h. What is its…

A: Given data:-u=56 km/h=(56×518)m/sec=15.55 m/secv=58 km/h=58×518m/sec=16.11 m/sect=1 sec

Q: The cat runs a constant speed of 9.7 m/s. If the cat runs a total of time of 7.1 mins. How much…

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Q: A passenger is traveling on a luxury train that is moving west at 80 mph (miles per hour). The…

A: Given : v1 = 80 mph due west v2 = 10 mph due east

Q: A ball is thrown straight down a builing at a velocity of 2.2m/s. It hits the ground after 1 second.…

A: Data provided :  Initial velocity (Vi) = 2.2 m/s, downward  Hits the ground after time (t) = 1…

Q: A boulder rolls over a 50m high cliff. How fast was the boulder moving if it was found 180 m on the…

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Q: Nerve impulses in the human body travel at a speed of about 100 ms-1. A 1.6m tall man accidentally…

A: Given data The speed of the nerve is given as v = 100 m/s. The height of the man is given as h =…

Q: A 1.2 ton car moving at 30 kilometers per hour bumps the rear of a 1.8 ton car moving in the same…

A: Given data: The mass of the first car, m1=1.2 ton. The mass of the second car, m2=1.8 ton. The…

Q: How fast was a plane flying if it traveled 800km in 50 min *

A: How fast was a plane flying if it traveled 800km in 50 min *

Q: what time did the coin get to the second floor?

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Q: You shoot a cannonball off the side of a cliff. The cannonball leaves the cannon at 30 m/s , and it…

A: Given Velocity of the cannonball is u = 30 m/s and the horizontal distance covered by the cannonball…

Q: A sports car goes from 0 to 100 mph in 7.9 seconds. What is the cars acceleration

A: Given Data: The initial velocity of a car is, vi=0 mph The final velocity of a car is, vf=100 mph…

Q: A car, initially traveling at 8 miles per hour, comes to rest in 7.5 s. What was its acceleration in…

A: Given: The initial speed of the car is 8 mi/h. The final speed of the car is 0 mi/h. The time…

Q: An object is dropped from the top of a 660-m-high tower. Its height above ground after t sec is660 -…

A: Given data: The height of the tower, h=660 m. The expression for the height of the object above the…

Q: A sled slides off the ice at a speed of 4.1 m/s. The sled slows down at a rate of 2.9 m/s². How fast…

A: sled slides off the ice at a speed(initial), u= 4.1 m/s De acceleration=-2.9 m/s2 Distance, S=1.2m

Q: Without turning around a dog walks along a long straight path for 4.0m at 3.0m/s and then for 2.0s…

A: The average speed is defined as the total distance traveled by an object divided by the total time…

Q: Amereruns 1/10 miles in 2/3 mins.What is his speed in miles per minute.

A: Given data:  Distance (d) = 1/10 miles Time (t) = 2/3 minutes Required: Speed in miles per minute

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: John can fly his airplane 2140 miles with a wind speed of 25 mph in the same time he can travel 1940…

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Q: You are on a bicycle with 20-inch diameter wheels. The front wheel picks up a tack and you travel…

A: Given that:- Diameter of wheel=20 inch

Q: A car initially traveling at 14.8 miles per hour comes to rest in 4.9 s. What was its acceleration…

A: Initial velocity of car (u) = 14.8 miles per hour Final velocity (v) = 0 mstime taken (t) = 4.9…

Q: A train is traveling 20 kilometers per hour. It is .5 kilometers behind you. You want to beat the…

A: The speed of train is 20 km/hr Distance between you and train is 5 km Distance between you and…

Q: A car is moving at a speed of 6 meters/Second In 5 Seconds, he increases its speed to 16…

A: We know thatv=u+atWherev=final velocityu=initial velocitya=accelerationt=time taken

Q: A ball is dropped from a tall building. How far does it fall in 1.5 s

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Q: A 39.5 kg mg child on a sled slides down a hill reaching a speed of 8.92 meters per second how high…

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Q: A car travels at 10 m/s for 20 seconds and then at 20 m/s for 30 seconds. What is the average speed…

A: Average speed = total distance / total time  distance in span = speed X time

Q: A car is moving at a speed of 5 m/s in 4 s, he increases its speed to 15 m/s. What is acceleration ?

A: Introduction :  In this question we are provided it value of time taken , initial velocity and final…

Q: A passenger jet flies at a constant speed from one airport to another 1,500 miles away in 3.5 hours.…

A: The expression for speed of the jet flies from one airport to another is,

Q: A car advertisement states that a certain car can accelerate from rest to 70 km/h in 7 seconds.…

A: Acceleration is defined as the rate of change of speed. In this case, we have: Initial speed, u=0…

Q: A cyclist travels 3 miles in 15 minutes and then a further 7 miles in 35 minutes without stopping.…

A: Given data: Cyclist travels 3 miles in 15 minutes Then 7 miles in 35 minutes Required: Average speed…

Q: A racecar driver steps on the gas, and his racecar travels 20 meters in 2 seconds starting from…

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Q: Stopping distance of a car moving with speed 30 km/h is 2 m. If the speed is 70 km/h, what will be…

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Q: Starting at 10am, you bicycle at an average speed of 15 mph until noon when you enter the mountains.…

A: For the first part,The bicycle travelling from 10 am to noon(12 pm) at a speed of 15…

Q: A car passes you going 10.4 m/s and accelerates smoothly up to 25.0 m/s in a time of 8.25 s.  What…

A: Given data The car's initial speed is: u = 10.4 m/s The car's final speed is: v = 25 m/s The time…

Q: a car drives for 1.36 hours at a speed of 61.2 miles per hour. What is the distance traveled in…

A: Given data: Time (t) = 1.36 h Speed (v) = 61.2 mi/h Required: Distance traveled (d)

Q: A private jet can fly 1780.8 miles against a 23-mph headwind in the same amount of time it can fly…

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Q: A train travels 6 meters in the first second of travel, 6 meters again during the second second of…

A: If we plot the graph of distance vs time, We get a straight line as the distance traveled in each…

Q: A 3,500kg pickup truck is traveling eastward at a velocity of 15.0m/s when it collided into the rear…

A: Correct answer : The velocity of the car just after the collision is 20.67 m/s.

Distance and Speed

The speed, distance and time relation forms the basis of study of motion. You will need these concepts in the study of Mechanics. This concept is applicable for students who are studying the following courses –