Homework Answers
At time t1 = 16 s, a car with mass 1000 kg is located at <112,...
At time t1 = 16 s, a car with mass 1000 kg is located at <112, 0, 20> m and has momentum <5500, 0, −3600> kg · m/s. The car's momentum is not changing. At time t2 = 20 s, what is the position of the car?
A car moves with a constant acceleration of 3.6 m/s2. At a time of 5 s,...
A car moves with a constant acceleration of 3.6 m/s2. At a time of 5 s, it is 110 m beyond a mile marker; at a time of 8 s, it has a velocity of 10 m/s. Find the car's position after the mile marker at time 8 s.
Problem 3.29 Astar ofmass 6 x1000 kg is located at <6 x ío» 5x10a, o> m....
Problem 3.29 Astar ofmass 6 x1000 kg is located at <6 x ío» 5x10a, o> m. A planet of mass 9 × iO24 kg s located at eston 10x10ao, m and is me 0> m/s. yofea nofil nr. ng w haves (a) During a time interval of 1 10 seconds, what is the change in the planet's velocity? m/s (b) During this time interval of 1 x 106 seconds, what is the change in the planet's position? (e) why are...
A race car moves such that its position fits the relationship x = (4.0 m/s)t +...
A race car moves such that its position fits the relationship x = (4.0 m/s)t + (0.60 m/s3)t3 where x is measured in meters and t in seconds. (a) A plot of the car's position versus time (b) Determine the instantaneous velocity of the car at t = 3.6 s, using time intervals of 0.40 s, 0.20 s, and 0.10 s. (In order to better see the limiting process keep at least three decimal places in your answer.) Δt =...
12-10. Car A starts from rest at t-0 and travels along a straight road with a...
12-10. Car A starts from rest at t-0 and travels along a straight road with a constant acceleration of 3 m/s until it reaches a speed of 27 m/s. Afterwards it maintains this speed. Also, when-0, car B located 2000 m down the road is traveling towards A at a constant speed of 20 m/s. Determine the distance travelled by car A when they pass each other. 20 m/s 2000 m 12-11. A particle travels along a straight line with...
The following is a position-time graph for an object during a 5.0s time interval Time (s)...
The following is a position-time graph for an object during a 5.0s time interval Time (s) 8. Which graph of velocity versus time would best represent the object's motion during the same time interval? 띠 Tane n 9. Which graph in diagram 1-36 below represents the motion of an object increasing in velocity? ER) CB) IC) Diegrem 1-36 10. A man walks at a speed of 3.00 m/s for 400 seconds, and then walks at 4.00 m/s for 300 seconds....
75 To stop a car, first you require a certain reaction time to be 2The psition...
75 To stop a car, first you require a certain reaction time to be 2The psition of a particle moving along the x sxis depends on gin braking: then the car slows at a constant rate. Suppose that the the time according to the equationxbP, where a is in me total distance moved by your car during these two phases is 56.7 m lers and rin secondh What are the units of (a) constant e and (b) con- when its...
Problem 3.29 A star of mass 6 x 1030 kg is located at <6 x 1012,...
Problem 3.29 A star of mass 6 x 1030 kg is located at <6 x 1012, 4 x 1012, 0> m. A planet of mass 2 x 1024 kg is located at <5 x 1012, 9 x 1012, 0> m and is moving with a velocity of <0.5 x 104, 1.4 x 104, 0> m/s. (a) During a time interval of 1 x 10° seconds, what is the change in the planet's velocity? > m/s (b) During this time interval...
A race car moves such that its position fits the relationship x=(0.5m/s)t+(0.75m/s2) t2 where: x in meters (m) and t in second (s)
A race car moves such that its position fits the relationshipx=(0.5m/s)t+(0.75m/s2)t2 where:x in meters (m) and t in second (s)Plot a graph of position vs. timeDetermine the instantaneous velocity at 4 sec, using a time interval of 0.2 secCompare the average velocity during the first 4 sec with the results.Show graph and solution
#15 and #11 11. ssm A bicyclist makes a trip that consists of three parts, each...
#15 and #11
11. ssm A bicyclist makes a trip that consists of three parts, each in the same direction (due north) along a straight road. During the first part, she rides for 22 minutes at an average speed of 7.2 m/s. During the second part, she rides for 36 minutes at an average speed of 5.1 m/s. Finally, dur- ing the third part, she rides for 8.0 minutes at an average speed of 13 m/s. (a) How far has...
Problem 3.29 Astar ofmass 6 x1000 kg is located at <6 x ío» 5x10a, o> m. A planet of mass 9 × iO24 kg s located at eston 10x10ao, m and is me 0> m/s. yofea nofil nr. ng w haves (a) During a time interval of 1 10 seconds, what is the change in the planet's velocity? m/s (b) During this time interval of 1 x 106 seconds, what is the change in the planet's position? (e) why are...
12-10. Car A starts from rest at t-0 and travels along a straight road with a constant acceleration of 3 m/s until it reaches a speed of 27 m/s. Afterwards it maintains this speed. Also, when-0, car B located 2000 m down the road is traveling towards A at a constant speed of 20 m/s. Determine the distance travelled by car A when they pass each other. 20 m/s 2000 m 12-11. A particle travels along a straight line with...
The following is a position-time graph for an object during a 5.0s time interval Time (s) 8. Which graph of velocity versus time would best represent the object's motion during the same time interval? 띠 Tane n 9. Which graph in diagram 1-36 below represents the motion of an object increasing in velocity? ER) CB) IC) Diegrem 1-36 10. A man walks at a speed of 3.00 m/s for 400 seconds, and then walks at 4.00 m/s for 300 seconds....
75 To stop a car, first you require a certain reaction time to be 2The psition of a particle moving along the x sxis depends on gin braking: then the car slows at a constant rate. Suppose that the the time according to the equationxbP, where a is in me total distance moved by your car during these two phases is 56.7 m lers and rin secondh What are the units of (a) constant e and (b) con- when its...
Problem 3.29 A star of mass 6 x 1030 kg is located at <6 x 1012, 4 x 1012, 0> m. A planet of mass 2 x 1024 kg is located at <5 x 1012, 9 x 1012, 0> m and is moving with a velocity of <0.5 x 104, 1.4 x 104, 0> m/s. (a) During a time interval of 1 x 10° seconds, what is the change in the planet's velocity? > m/s (b) During this time interval...
#15 and #11
11. ssm A bicyclist makes a trip that consists of three parts, each in the same direction (due north) along a straight road. During the first part, she rides for 22 minutes at an average speed of 7.2 m/s. During the second part, she rides for 36 minutes at an average speed of 5.1 m/s. Finally, dur- ing the third part, she rides for 8.0 minutes at an average speed of 13 m/s. (a) How far has...
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