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1. A runner dashes from the starting line (x0) to a point 98 m away and...
A car accelerates at a constant rate from zero to 26.1 m/s in 10 seconds and...
A car accelerates at a constant rate from zero to 26.1 m/s in 10 seconds and then slows to 10.2 m/s in 5 seconds. What is its average acceleration to the nearest tenth of a m/s2 during the 15 seconds? What was the acceleration during the first 10 seconds?
s. To the nearest tenth of a mi's, what is the final velocity of the car...
s. To the nearest tenth of a mi's, what is the final velocity of the car in the previous problem? 7. A passenger in a helicopter initially traveling upwards at 26 m/s accidentally drops a package out the window. If it takes 19 seconds to reach the ground (y-0), how high to the nearest meter was the helicopter when the package was dropped? To the nearest meter what was the maximum height of the package above the ground in the...
2. A car moves along anx-axis through a distance of 900 m, starting from rest (at...
2. A car moves along anx-axis through a distance of 900 m, starting from rest (at r-0 m) and stopping at x-900 m. It accelerates at +6 m/s through first 10 s of time. Then, through the remaining part of that distance, it slows down with constant acceleration until it stops. What are the: (a) car's maximum speed? (b) distance traveled during the first 10 s of time? (c) acceleration through the remaining part of the distance? (d) time elapsed...
1) An 18-year-old runner can complete a 10.0 km course with an average speed of 4.52...
1) An 18-year-old runner can complete a 10.0 km course with an average speed of 4.52 m/s. A 50-year-old runner can cover the same distance with an average speed of 4.07 m/s. How much later (in seconds) should the younger runner start in order to finish the the course at the same time as the older runner? s 2) A sprinter explodes out of the starting block with an acceleration of +3.8 m/s2, which she sustains for 1.4 s. Then,...
5. A car starting from rest moves in a straight line with a constant acceleration of...
5. A car starting from rest moves in a straight line with a constant acceleration of 2.20 m's for 100 s,then slows down to a stop with a constant deceleration of 3.05 m/s. How far does it travel? meters 6. Two cars are traveling along a straight road. Car (A) maintains a constant spoed of 900 kmh: car (B) maintains a constant spoed of 101 km/h. Att0, car (B) is 450 km behind car A. How far will car (A)...
From the starting point (from rest) a car travels a distance stotal in a straight line...
From the starting point (from rest) a car travels a distance
stotal in a straight line with a constant acceleration. At the
distance stotal the car has reached a speed of vfinal. Determine
how much time this took and the value of the constant acceleration.
Take stotal = 200 m and vfinal = 15 m/s.
1. From the starting point (from rest) a car travels a distance Stotal in a straight line with a constant acceleration. At the distance Stotal...
Your friend is about to drive away after moving out and you notice that they left...
Your friend is about to drive away after moving out and you notice that they left behind their basketball, so you decide to throw it at a 45 degree from the horizontal towards the truck. If the truck is 7.3 m away from you, at what speed must you throw the ball for it to make it into the truck? Assume you launch the ball at the same height as the truck bed. Report the value in m/s rounded to...
Problem Solving 1. What is the acceleration of a car racer that accelerates from 0 to...
Problem Solving 1. What is the acceleration of a car racer that accelerates from 0 to 90 m/s in 6.0 seconds? 2. What is the acceleration of a truck driver moving at 18 m/s and applies the brakes and stops in 4.0 seconds? 3. An automobile accelerates from rest to 8.8 m/s in 3.0 seconds using the first gear then changes to second gear. The automobile reaches 22.0 m/s and is shifted into third gear. After 7.0 seconds in third...
1 (a) A car accelerates from rest to a speed of 10.9 m/s in 8.4 seconds....
1 (a) A car accelerates from rest to a speed of 10.9 m/s in 8.4 seconds. Find the magnitude of the average acceleration. (b) If I accelerate for 5.3 seconds in my car at 2.6 m/s2 when I have an initial velocity of 20.9 m/s, what final velocity do I have? (c) If I apply an acceleration in the opposite direction to my initial velocity for 7.4 seconds of -3.2 m/s2 when I have an initial velocity of +21.6 m/s,...
1.) A car starting from rest is travelling with a constant acceleration of 30 m/s2. Find...
1.) A car starting from rest is travelling with a constant acceleration of 30 m/s2. Find its velocity after 5 seconds. Find its position after 5 seconds. Find the time it would reach 600 m/s Find the distance it has traveled upon reaching a speed of 600 m/s 2.) A particle travels from 100 m/s to 1000 m/s. Find its constant acceleration if this was done in 5 seconds. What is the distance traveled during the 5 seconds interval? Find...
s. To the nearest tenth of a mi's, what is the final velocity of the car in the previous problem? 7. A passenger in a helicopter initially traveling upwards at 26 m/s accidentally drops a package out the window. If it takes 19 seconds to reach the ground (y-0), how high to the nearest meter was the helicopter when the package was dropped? To the nearest meter what was the maximum height of the package above the ground in the...
2. A car moves along anx-axis through a distance of 900 m, starting from rest (at r-0 m) and stopping at x-900 m. It accelerates at +6 m/s through first 10 s of time. Then, through the remaining part of that distance, it slows down with constant acceleration until it stops. What are the: (a) car's maximum speed? (b) distance traveled during the first 10 s of time? (c) acceleration through the remaining part of the distance? (d) time elapsed...
5. A car starting from rest moves in a straight line with a constant acceleration of 2.20 m's for 100 s,then slows down to a stop with a constant deceleration of 3.05 m/s. How far does it travel? meters 6. Two cars are traveling along a straight road. Car (A) maintains a constant spoed of 900 kmh: car (B) maintains a constant spoed of 101 km/h. Att0, car (B) is 450 km behind car A. How far will car (A)...
From the starting point (from rest) a car travels a distance
stotal in a straight line with a constant acceleration. At the
distance stotal the car has reached a speed of vfinal. Determine
how much time this took and the value of the constant acceleration.
Take stotal = 200 m and vfinal = 15 m/s.
1. From the starting point (from rest) a car travels a distance Stotal in a straight line with a constant acceleration. At the distance Stotal...
Problem Solving 1. What is the acceleration of a car racer that accelerates from 0 to 90 m/s in 6.0 seconds? 2. What is the acceleration of a truck driver moving at 18 m/s and applies the brakes and stops in 4.0 seconds? 3. An automobile accelerates from rest to 8.8 m/s in 3.0 seconds using the first gear then changes to second gear. The automobile reaches 22.0 m/s and is shifted into third gear. After 7.0 seconds in third...
1.) A car starting from rest is travelling with a constant acceleration of 30 m/s2. Find its velocity after 5 seconds. Find its position after 5 seconds. Find the time it would reach 600 m/s Find the distance it has traveled upon reaching a speed of 600 m/s 2.) A particle travels from 100 m/s to 1000 m/s. Find its constant acceleration if this was done in 5 seconds. What is the distance traveled during the 5 seconds interval? Find...
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