8. Find the work done on a lagage of 50 kg. pulled by a string elevated at 45 degrees by a force of 100 N, displacing it at a distance of 10 meters. a. 700 Joules b. 750 Joules c. 710 Joules d. 707.1 Joules a. 710.1 Joules 9. With the same given problem in no. 8, calculate the power used to do the same work in 10 seconds. a. 65.65 watts b. 45 watts c. 80.1 watts d. 50 watts e. 70.71 watts ANSWER NUMBER ONLY

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Chapter7: Work And Kinetic Energy
Section: Chapter Questions
Problem 72P: A 500-kg dragster accelerates from rest to a final speed of 110 m/s in 400 m (about a quarter of a...
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8. Find the work done on a lagage of 50 kg.
pulled by a string elevated at 45 degrees by a
force of 100 N, displacing it at a distance of 10
meters.
a. 700 Joules
b. 750 Joules
c. 710 Joules
d. 707.1 Joules
a. 710.1 Joules
9. With the same given problem in no. 8,
calculate the power used to do the same work
in 10 seconds.
a. 65.65 watts
b. 45 watts
c. 80.1 watts
d. 50 watts
e. 70.71 watts
ANSWER
NUMBER 9
ONLY
Transcribed Image Text:8. Find the work done on a lagage of 50 kg. pulled by a string elevated at 45 degrees by a force of 100 N, displacing it at a distance of 10 meters. a. 700 Joules b. 750 Joules c. 710 Joules d. 707.1 Joules a. 710.1 Joules 9. With the same given problem in no. 8, calculate the power used to do the same work in 10 seconds. a. 65.65 watts b. 45 watts c. 80.1 watts d. 50 watts e. 70.71 watts ANSWER NUMBER 9 ONLY
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