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, what final velocity do I have?
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1 (a) A car accelerates from rest
to a speed of 10.9 m/s in 8.4 seconds....
A car accelerates at 5 m/s^2 for 8 seconds. The direction of its acceleration is due...
A car accelerates at 5 m/s^2 for 8 seconds. The direction of its acceleration is due east. If its initial velocity was 7 m/s, also due east, what is its speed during this time interval? Round your answer to the two decimals. ________ A car accelerates at 7 m/s^2 for 2 seconds. The direction of its acceleration is due east (east = positive direction). If its initial velocity was 47 m/s, due west, what is its final velocity? Round your...
A car accelerates from rest at S m/s for 5 seconds. It moves with a constant...
A car accelerates from rest at S m/s for 5 seconds. It moves with a constant velocity for 15 seconds, and then decelerates at 5 m/s to come to rest in 5 seconds. The entire journey takes 25 seconds. Plot the velocity-time graph of the motion AND determine the total distance the car travelled. (10 pts.) 4.
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?
A car accelerates from rest with a constant acceleration of 1.5m/s^2 for 14 seconds . the...
A car accelerates from rest with a constant acceleration of 1.5m/s^2 for 14 seconds . the car then continues traveling at the constant velocity with the speed it achieved after the 14 seconds of acceleration . it travels at this constant velocity for an additional 25 seconds. how far did the car travel during this whole motion?
A jogger accelerates from rest to 3.1 m/s in 2.4 s. A car accelerates from 35.0...
A jogger accelerates from rest to 3.1 m/s in 2.4 s. A car accelerates from 35.0 to 42.0 m/s also in 2.4 s. (a) Find the acceleration (magnitude only) of the jogger. m/s2 (b) Determine the acceleration (magnitude only) of the car. m/s2 c) If so, how much farther?
A car starts from rest at a stop sign. It accelerates at 4.6 m/s2 for 7.4...
A car starts from rest at a stop sign. It accelerates at 4.6 m/s2 for 7.4 s , coasts for 1.5 s , and then slows down at a rate of 3.2 m/s2 for the next stop sign. how far apart are the stop signs?
12) A sprinter running a 100 m race starts at rest and accelerates at constant acceleration...
12) A sprinter running a 100 m race starts at rest and accelerates at constant acceleration A for 3.0 seconds and then maintains a constant velocity. In terms of A, what is the position of the runner after 3.0 seconds? What is A if the sprinter finishes the race in 12.0 seconds? 13) What force is needed to accelerate a 30.0 lb block at 2.2 m/s2? 14) What force is needed to stop a 1500 kg car in 40 m...
1. A car accelerates from rest, for 5.0 seconds at a rate of 3.00 m/s. How...
1. A car accelerates from rest, for 5.0 seconds at a rate of 3.00 m/s. How far does the car travel while accelerating? A) 15 m B) 226 m C) 75.0 m D) 37.5 m 2. A 918 kg automobile is pushed along a level road by four students who apply a total forward force of 500 N. Neglecting friction, the acceleration of the automobile is A) 0.055m/s2 B) 0.54 m/s C) 1.8 m/s D) 9.8 m/s2 3. 4. An...
A car going 5 m/s accelerates at 2 m/s^2 for 3 seconds. Then he travels at...
A car going 5 m/s accelerates at 2 m/s^2 for 3 seconds. Then he travels at a constant velocity for 4 seconds. What is the total distance traveled in the 7 seconds and what is the final speed of the car?
A car traveling with an initial velocity of 21 m/s accelerates at a constant rate of...
A car traveling with an initial velocity of 21 m/s accelerates at a constant rate of 2.3 m/s2 for a time of 2 seconds.
A car accelerates at 5 m/s^2 for 8 seconds. The direction of its acceleration is due east. If its initial velocity was 7 m/s, also due east, what is its speed during this time interval? Round your answer to the two decimals. ________ A car accelerates at 7 m/s^2 for 2 seconds. The direction of its acceleration is due east (east = positive direction). If its initial velocity was 47 m/s, due west, what is its final velocity? Round your...
A car accelerates from rest at S m/s for 5 seconds. It moves with a constant velocity for 15 seconds, and then decelerates at 5 m/s to come to rest in 5 seconds. The entire journey takes 25 seconds. Plot the velocity-time graph of the motion AND determine the total distance the car travelled. (10 pts.) 4.
12) A sprinter running a 100 m race starts at rest and accelerates at constant acceleration A for 3.0 seconds and then maintains a constant velocity. In terms of A, what is the position of the runner after 3.0 seconds? What is A if the sprinter finishes the race in 12.0 seconds? 13) What force is needed to accelerate a 30.0 lb block at 2.2 m/s2? 14) What force is needed to stop a 1500 kg car in 40 m...
1. A car accelerates from rest, for 5.0 seconds at a rate of 3.00 m/s. How far does the car travel while accelerating? A) 15 m B) 226 m C) 75.0 m D) 37.5 m 2. A 918 kg automobile is pushed along a level road by four students who apply a total forward force of 500 N. Neglecting friction, the acceleration of the automobile is A) 0.055m/s2 B) 0.54 m/s C) 1.8 m/s D) 9.8 m/s2 3. 4. An...
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