A slight earth tremor causes a large boulder to break free and start rolling down the mountainside with a constant acceleration of 5.2m/s? [downhill]. What is the boulder's velocity after 8.5s.

Q: The speed of a car increases from 20 m/s to 80 m/s during 3 seconds . The acceleration of the car…

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Q: If the speed at x = 1, v(x = 1) = 3 m/s then the speed at x 0, v(x=0) is:

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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: A driver in a car slows down when he sees a deer ahead. He slows down at a rate of -5.6m/s^2 for 4…

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Q: When X = 5t^2+ 10t -3, the velocity at 4s is: 50 m/s .A 110 m/s .B 25 m/s .C 30 m/s .D

A: The position of an object is given by a function of time as shown below. x=5t2+10t-3 The velocity is…

Q: You drive 8 km at 70km/h and then another 8.0 kmat 90 km/h. Your average speed over the 16 km drive…

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Q: Suppose an object has an acceleration of ā = 2.0 tî. What will its velocity be after 10.0s if it…

A: Given data The equation of the acceleration is given as a→=2 m/s2ti^. The time duration is given as…

Q: a man throws a stone from the rest down to well. find the acceleration that stone make to reach the…

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Q: A car traveling at 4.0 m/s has a constant acceleration of 2.0 m/s² in the same direction as the…

A: Given Initial speed of car = 4.0 m/s Acceleration of car = 2.0 m/s2 (constant) Acceleration is in…

Q: A truck covers 40.0 m in 8.95 s while smoothly slowing down to final speed of 1.60 m/s.

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Q: An antelope moving with constant acceleration covers the distance between two points 70.0 m apart in…

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Q: A helicopter turns slowly for 10.0 s with an average acceleration of 4.50m/s2 [W]. If the helicopter…

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Q: A car starts from rest and goes down a slope with a constant acceleration of 5 m/s2. After 10 s the…

A: In the given problem the acceleration is constant so the Newton's law of motion can be used to…

Q: An object dropped from a cliff falls with a constant acceleration of 10 m/s?. Find its speed 5 s…

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Q: If I toss a ball straight up with an initial velocity of 96ft/s, how long will it take for the ball…

A: Given data:  Initial velocity (Vi) = 96 ft/s, upward  Acceleration due to gravity (g) = 32 ft/s2,…

Q: 1. Describe the velocity on the different slopes below. x (m) 100 80 D 60 40 20 t ( 50

A: As we know the velocity is defined as change in position per unit time. So the velocities at points…

Q: An object is thrown vertically upward. It has a speed of 32ft/sec when it has reached one- half its…

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Q: A soccer ball is kicked with the initial speed of 10.7 m/s After 0.730 s it is at its highest point.

A: Initial speed of the ball u=10.7 m/s Time taken by the ball to reach the maximum height t =0.73 s If…

Q: A rock is dropped from rest. How long will it take to fall a distance h? Ignore air resistance. 2h…

A: Given data: Initial velocity (v0) = 0 m/s Height = h Air resistance is negligible  Required:  The…

Q: A jogger runs 10 km in 45 minutes, rests for 10 minutes, and then runs another 8 km in 1 hour. The…

A: Given Data :               Distance traveled by jogger in first 45 minutes (d1) = 10 km = 10×103 m…

Q: A truck covers 40.0 m in 7.95 s while uniformly slowing down to a final velocity of 1.80 m/s.

A: Given Data : The distance covered by the truck is given as  = 40m. The time taken to travel distance…

Q: A cyclist moves with a speed 2 m/s, then accelerates at 1.2 m/s2 after a distance 25m. Then the…

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Q: What constant acceleration is required for a cheetah to go from rest to its top speed of 87 km/h in…

A: Given:          Initial velocity of the cheetah is u = 0 m/s         final velocity of the cheetah…

Q: A grasshopper's legs propel the insect upward at 2.5 m/s. How high can this grasshopper jump?

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Q: A truck covers 40.0 m in 8.50 s, while smoothly slowing down to a final speed of 2.80 m/s. Find its…

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Q: A car falls from a height of 25 m. How fast does it go to the bottom??

A: The kinematic equation involving the final speed (v), initial speed (u), acceleration (a) and the…

Q: You jog at 9.5 km/h for 6.0 km , then you jump into a car and drive an additional 18 km. With what…

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Q: How long does it take for a ball dropped off of a building of height 7.7 m to hit the ground if the…

A: When a ball is dropped at the rest from the top of the building than it moves under the constant…

Q: A car travels a distance of 100 km in 2.00 hours. It then travels an additional distance of 60.0 km…

A: Given data:  Distance (d1) = 100 km Time (t) = 2.00 h Additional distance (d2) = 60.0 km Time (t) =…

Q: If a tennis ball is thrown upwards and reaches a height of 40m, what will its velocity be once it…

A: Given Data : The height reached by the ball is given as h = 40 m.

Q: A car accelerates from rest at 1.0m / (s ^ 2) for 20.0 seconds along a straight road. It then moves…

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Q: Fre is a new driver, wants to see how fast his old car will go.  He goes from a stop sign (0…

A: Given data The initial speed of the car is u=0 miles/hour=0 m/s The final speed of the car is v=30…

Q: An airplane has a lift off speed of 120km/h. If the plane needs a 240m of runway to take off, what…

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Q: Speed of a train is 20 meters per second. It can cross a pole in 10 seconds. What is the length of…

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Q: You drive 6.0 km at 50 km/h and then another 6.0 km at 90 km/h. Your Average speed over the 12 km…

A: Given data: Distance covered in first half is, s1=6.0 km. Speed during the first half is, v1=50…

Q: if a car starts from rest and reaches a speed of 20 m/s in 5s, what distance was covered?

A: To find out the distance , we will use equation of motion :  s= ut + 1/2 at^2  where , s= distance…

Q: A bicycle accelerates from rest at a constant rate of 2.12 [m/s*] for 15.0 [s]. It then ran at a…

A: Given data:  Initial velocity (v0) = 0 m/s Acceleration (a) = 2.12 m/s2  For time (t) = 15.0 s Then…

Q: A ball starts with an initial speed of 4.00 m/s and rolls down an incline with an acceleration of…

A: initial speed = 4 m/sacceleration = 2 m/s2 final speed = 8 m/slength of incline ??

Q: A hockey puck sliding on smooth ice at 4 m/s comes to a 1-m-high hill. Will it make it to the top of…

A: The kinetic energy is given by  K = 0.5 mv2  The potential energy is given by  U = m g h  where, m…

Q: An object starts from rest and accelerates uniformly. If it moves 3 m during the first second, then,…

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Q: a car accelerates from rest at 2 meters per second per second, its speed 3 seconds later will be ot…

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

A: Given data: Case 1: Speed (v1) = 3 m/s Distance (d1) = 4.0 m Case 2: Speed (v2) = 6 m/s Time(t2)= 2…

Q: the speed of a car travelling east is reduced uniformly from 133.1 km/h to 43.2 km/h at a distance…

A: Here, 133.1km/h=133.1km/h×1000m1km×1h3600s=36.97m/s And, 43.2km/h=43.2km/h×1000m1km×1h3600s=12m/s

Q: Speed of a train is 20 meters per second. It can cross a pole in 10 seconds. What is the length of…

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Q: When an object is thrown upwards,how much speed does it lose each second?

A: An object moving vertically upwards is moving under the gravitational acceleration, which is 9.8…

Q: A ball rolls off a table with a velocity of 15.0 m/s. After 0.75 s, it lands it is a distance or 1.2…

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Q: You drive 6.0 km at 50 km/h and then another 6.0 k at 90 km/h. Your average speed over the 12km…

A: The speed is the ratio of distance over time,  For the first 6.0 km the speed is 50 km/h, so the…

Q: 16. A particle, initially at rest, starts moving in a straight line with an accelerationa- 6t+ 4m/s.…

A: Given value--- acceleration a = 6t + 4 . We have to find--- the distance covered by particle in 3…