A car travelling at 50kph can be stopped at a distance of 40m by applying brakes. If the same car is travelling at 80kph, the minimum stopping distance in meters is (assume no skidding).

Q: A ball is dropped (from rest) from a window and hits the ground with a speed of 5.5m/s. If the ball…

A: The ball is dropped from a height Velocity of the ball when it hits the ground level is Initially,…

Q: A car traveling at 35 m/s suddenly runs out of gas while driving up a 7° incline. How long will it…

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Q: An apple is dropped from a tree limb 4.5 m above the ground. What speed would it have when it is…

A: Height of tree H=4.5 m above the ground. We want to calculate the speed of apple when it is halfway…

Q: How fast should you throw a kumquat straight down from 40 m up so that its impact speed would be the…

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Q: b) If the fastest you can safely drive is 65 mi/h, what is the longest time you can stop for a…

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Q: 2) A volleyball of mass 0.28 kg is dropped from the top of the bleachers (height equals 12 m). What…

A: Given: The mass of the volleyball is 0.28 kg. The height of the volleyball from the ground is 12 m.…

Q: Suppose a person drops 20.0 m (about 5 floors) from a burning building and onto an air bag. (a) What…

A: In this question we have to determine the maximum speed when a person falls from a height of 20 m.…

Q: A rock is thrown from a bridge 21.5 m above water with an initial speed of 14 m/s.   Assuming…

A: Given data: The height above water is h=21.5 m. Initial speed is u=14 m/s.

Q: While dusting a bookshelf at the local college's huge library, Jean accidentally knocks a book off…

A: From equation of motion, final velocity of the body is v2 = u2 + 2as Where, v = final velocity u =…

Q: When you throw a pebble straight up with initial speed 5.0-m/s, it reaches a maximum height H with…

A: Given, Initial Velocity, v= 5.0 m/s, Initial height, H, and new height, h=1.7 H.

Q: While dusting a bookshelf at the local college's huge library, Jean accidentally knocks a book off…

A: Given Height from book dropped = h = 3.48 m Initial velocity = u = 0 m/s We have to calculate the…

Q: A rock is thrown from a bridge 19.5 m above water with an initial speed of 17 m/s. Assuming…

A: According to the law of conservation of energy,

Q: An arrow is shot into the air and reaches a maximum height of 55 m, where it stops momentarily and…

A: When the arrow will reach the maximum height, the speed of the arrow at the maximum height will be…

Q: If an object is dropped from the top of a building and it reaches the ground at t = 4 s then the…

A: Given data:  Initial velocity (Vi) = 0 m/s Time (t) = 4 s Air resistance is negligible g = 9.8 m/s2…

Q: While dusting a bookshelf at the local college's huge library, Jean accidentally knocks a book off…

A: Initial speed of the book, u = 0 m/s Height of the shelf, h = 3.83 m Acceleration due to gravity, g…

Q: A 72kg bungee jumper jumps from a bridge. She is tied to a bungee cord, whose unstretched length is…

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Q: To Merge into the highway you need to increase your speed from 50 km/h to 100 km/h. If your car can…

A: Given:-  The initial velocity  v1 = 50 km /h = 13.89 m/s  The final velocity v2 = 100 km/h = 27.78…

Q: A rock is thrown from a bridge 18 m above water with an initial speed of 15.5 m/s. Assuming…

A: The objective of the question is to find the final speed of the rock when it hits the water. We will…

Q: A truck started with 8 m/s and then speeded up to reach at a certain place in 1 hr with 0.005 m/s^2.…

A: Given data The initial velocity of the truck is given as u = 8 m/s. The time interval is given as t…

Q: A car traveling at 10 mph gets on an icy hill (  = 0 ). The hill angle is 45. driver stomps on the…

A: The car slides down the hill upto 200 ft, hence applying Newton'sequation of motion to this angular…

Q: A ball is dropped (from rest) from a window and hits the ground with a speed of 7.0m/s. If the ball…

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Q: A car is driven for 60 miles. The first 10 miles are through a large city at a speed of 40 mph; once…

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Q: A ball is thrown straight up with a speed of 30 m/s, and air resistance is negligible. (a) How long…

A: Given: Initial speed of ball u = 30 m/s.

Q: At the base of a hill, a 90 kg cart drives at 13 m/s toward it then lifts off the accelerator…

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Q: If an object were to freely, from what height would it need to drop to reach a speed of 70.0m / s…

A: Given data:  Initial velocity (v0) = 0 m/s Final velocity (v) = 70.0 m/s Required: The height (h) of…

Q: own from a bridge 21 m above water with an initial speed of 14 m/s. Assuming negligible air…

A: GivenRock is thrown from bridge  above water from height, h=21mInitial speed of rock, u=14m/s

Q: HINT: Show all work for partial credit! 3.You slam on the brakes of your car in a panic, and skid a…

A: Given: You slam on the brakes of your car in a panic, and skid a certain distance on a straight,…

Q: ayab on his heavy bike drives for 2 h at 100 km/h and for 3 h at 30 m/s. His average

A: Suppose Tayab on his bike travel distance (D1) & (D2) in kilometer in two different intervals of…

Q: Uphill escape ramps are sometimes provided to the side of steep downhill highways for trucks with…

A: Angle=140Initial speed=160 km/h