linear motion 6

Physics Worksheet Linear Motion Section: Name: Mr. Lin 6 f. A race car accelerates uniformly from 10. m/s to 30. m/s in 4.0 seconds. Determine the acceleration and the average speed of the car. g. A race car accelerates uniformly from 18.5 m/s to 46.1 m/s in 2.47 seconds. Determine the acceleration of the car and the distance traveled. h. An airplane accelerates down a runway at 3.20 m/s 2 for 32.8 s until it finally lifts off the ground. Determine the distance traveled before take-off. i. A car starts from rest and accelerates uniformly for 5.21 seconds over a distance of 110 m. Determine the acceleration of the car. j. A plane has a take-off speed of 100 m/s and requires 1000 m to reach that speed. Determine (a) the acceleration of the plane and (b) the time taken to reach the take-off speed. k. Jonathan tries to stop his car to prevent a collision while his car is moving at 40 m/s. The maximum deceleration the brake can provide is 10 m/s 2 . (a) What is the minimum skid distance for his car? (b) Sketch a graph of skid distance vs. velocity of the car. l. James throws a tennis ball upward at 10 m/s, (a) how high will the ball reach? (b) How long will it take for the ball to fall back to him? (c) What’s the speed of the ball when it falls back? m. Mr. Lin is falling into the ocean from a cliff of 1000-meter height, a) how long will it take for Mr. Lin to reach the surface of water? b) What is Mr. Lin’s speed right before he falls into the water? n. John found a hazard road condition 100-meter in front of him. If his car is moving at 10 m/s, (a) what’s the minimum constant acceleration required to avoid the danger? (b) How long will it take for his car to be fully stopped under such acceleration? o. Olivia’s car moves at 20 m/s while Victoria’s moves at 40 m/s. Both cars are designed to decelerate at 5 m/s 2 when the brakes are engaged. a) What’re the skid distances for both cars? b) Compare their speeds and skid distances. What kind of conclusion can you draw? p. A truck accelerates evenly from rest until its speed reaches 20 m/s. The truck then continues running at 20 m/s until it finishes the 600 m trip. The total time for the trip is 40 seconds. How long did it take the truck to reach its maximum speed?

Upload: debbyhooi

Post on 26-Sep-2015

213 views

Category:

Documents

0 download

Report

Download

Embed Size (px):

DESCRIPTION

Linear Motion 6

TRANSCRIPT

Physics Worksheet Linear Motion Section: Name:

Mr. Lin

6

f. A race car accelerates uniformly from 10. m/s to 30. m/s in 4.0 seconds. Determine the acceleration and the average speed of the car.

g. A race car accelerates uniformly from 18.5 m/s to 46.1 m/s in 2.47 seconds. Determine the acceleration of the car and the distance traveled.

h. An airplane accelerates down a runway at 3.20 m/s2 for 32.8 s until it finally lifts off the ground. Determine the distance traveled before take-off.

i. A car starts from rest and accelerates uniformly for 5.21 seconds over a distance of 110 m. Determine the acceleration of the car.

j. A plane has a take-off speed of 100 m/s and requires 1000 m to reach that speed. Determine (a) the acceleration of the plane and (b) the time taken to reach the take-off speed.

k. Jonathan tries to stop his car to prevent a collision while his car is moving at 40 m/s. The maximum deceleration the brake can provide is 10 m/s2. (a) What is the minimum skid distance for his car? (b) Sketch a graph of skid distance vs. velocity of the car.

l. James throws a tennis ball upward at 10 m/s, (a) how high will the ball reach? (b) How long will it take for the ball to fall back to him? (c) Whats the speed of the ball when it falls back?

m. Mr. Lin is falling into the ocean from a cliff of 1000-meter height, a) how long will it take for Mr. Lin to reach the surface of water? b) What is Mr. Lins speed right before he falls into the water?

n. John found a hazard road condition 100-meter in front of him. If his car is moving at 10 m/s, (a) whats the minimum constant acceleration required to avoid the danger? (b) How long will it take for his car to be fully stopped under such acceleration?

o. Olivias car moves at 20 m/s while Victorias moves at 40 m/s. Both cars are designed to decelerate at 5 m/s2 when the brakes are engaged. a) Whatre the skid distances for both cars? b) Compare their speeds and skid distances. What kind of conclusion can you draw?

p. A truck accelerates evenly from rest until its speed reaches 20 m/s. The truck then continues running at 20 m/s until it finishes the 600 m trip. The total time for the trip is 40 seconds. How long did it take the truck to reach its maximum speed?