University Physics Volume 1
18th Edition
ISBN:9781938168277
Author:William Moebs, Samuel J. Ling, Jeff Sanny
Publisher:William Moebs, Samuel J. Ling, Jeff Sanny
Chapter2: Vectors
Section: Chapter Questions
Problem 41P: A trapper walks a 5.0-lan straight-line distance from her cabin to the lake, as shown in the...
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![180%
P 7:35
stc ksa ll.
Second H.W.pdf
1. Draw and label the vector with these components. Then determine the magnitude and
angle of the vector.
a- A, = 3 ,A, = -2
b- By = -2 ,B, = 2
2. What is the speed of horse in meter per second that runs a distance of 1.2 miles in 2.4
minutes?
3. A car moving along X- axis according on the function:
X (t) = 2 t2 + 5 t + 7 on [1,2] Find:
a- The average velocity.
b- The acceleration at 3s.
4. Julie is walking around a track at a 2m/s for some exercise. She then decides to start
jogging so she accelerates at a rate of 0.5m/s for 3 seconds.
How far did Julie travel from the time she started to accelerate to the end of the 3 seconds?
5. Ralph uses a 2000 N force to push his car along a road for 1000 m. It takes him500 s
to do this
a- Calculate the amount of work that Ralph did on the car.
b- Calculate the amount of power that he generated.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F7bfb0db5-fcaa-4ffc-9028-05c71d0e01ae%2Fb0b38046-5af1-4169-a927-77b2618c0bc6%2Frd32q4n_processed.jpeg&w=3840&q=75)
Transcribed Image Text:180%
P 7:35
stc ksa ll.
Second H.W.pdf
1. Draw and label the vector with these components. Then determine the magnitude and
angle of the vector.
a- A, = 3 ,A, = -2
b- By = -2 ,B, = 2
2. What is the speed of horse in meter per second that runs a distance of 1.2 miles in 2.4
minutes?
3. A car moving along X- axis according on the function:
X (t) = 2 t2 + 5 t + 7 on [1,2] Find:
a- The average velocity.
b- The acceleration at 3s.
4. Julie is walking around a track at a 2m/s for some exercise. She then decides to start
jogging so she accelerates at a rate of 0.5m/s for 3 seconds.
How far did Julie travel from the time she started to accelerate to the end of the 3 seconds?
5. Ralph uses a 2000 N force to push his car along a road for 1000 m. It takes him500 s
to do this
a- Calculate the amount of work that Ralph did on the car.
b- Calculate the amount of power that he generated.
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