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Suppose that a NASCAR race car is moving to the right with a constant velocity of...
Suppose a NASCAR race car rounds one end of the Martinsville Speedway. This end of the...
Suppose a NASCAR race car rounds one end of the Martinsville Speedway. This end of the track is a turn with a radius of approximately 57.0 m . If the track is completely flat and the race car is traveling at a constant 30.5 m/s (about 68 mph ) around the turn, what is the race car's centripetal (radial) acceleration? centripetal acceleration: m/s2 Which force is responsible for the centripetal acceleration in this case? friction, normal ,gravity , or weight...
Suppose a NASCAR race car rounds one end of the Martinsville Speedway. This end of the...
Suppose a NASCAR race car rounds one end of the Martinsville Speedway. This end of the track is a turn with a radius of approximately 57.0 m. If the track is completely flat and the race car is traveling at a constant 27.5 m/s (about 62 mph) around the turn, what is the race car's centripetal (radial) acceleration? centripetal acceleration: 12.19 m/s2 Incorrect Which force is responsible for the centripetal acceleration in this case? O weight gravity friction normal What...
#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...
A race car traveling northward on a straight, level track at constant speed travels 4,139 m...
A race car traveling northward on a straight, level track at constant speed travels 4,139 m in 180 seconds. The return trip over the same track is made in 165 seconds. a) What is the average speed of the car in m/s for the first half of the trip? b What is the average speed of the car over the entre trip?
A race car is traveling at a constant speed of 102 m/s around a circular track...
A race car is traveling at a constant speed of 102 m/s around a circular track with a radius of 3250 m. How long does it take the race car to go around the track once? Express your answer in seconds.
A race car travels northward on a straight, level track at a constant speed, traveling 0.937...
A race car travels northward on a straight, level track at a constant speed, traveling 0.937 km in 12.1 sec. The return trip over the same track is made in 26 sec. (a) What is the average velocity of the car for the FIRST leg of the trip? (b) What is the average velocity of the car for the SECOND leg of the trip? (c) What is the average velocity of the car for the WHOLE trip? Part Answer Units...
A race car enters the circular portion of a track that has a radius of 63...
A race car enters the circular portion of a track that has a radius of 63 m. When the car enters the curve at point P, it is traveling with a speed of 120 km/h that is increasing at 5 m/s2. Three seconds later, determine the xand y components of velocity and acceleration of the car. 120 km/h
4.) If a belt is moving between two wheels is moving with a speed of 10m/s,...
4.) If a belt is moving between two wheels is moving with a speed of 10m/s, what is the angular velocity of the smaller wheel? R1- 10cm o R2 = 55cm 5.) If a 60g ball hits the floor traveling with a speed of 6m/s and rebounds with a speed of 4m/s, what is the magnitude of the average impulse provided by the floor on the ball? 6.) A NASCAR racer is traveling with an initial angular velocity of 0.105...
2. The following velocity-vs-time graph represents the motion of a race car during the first few...
2. The following velocity-vs-time graph represents the motion of a race car during the first few sec- onds of a race. The track may be assumed to be straight during this period. Afterwards the car continues to travel at a constant speed around the rest of the track, ending its lap back on the start/finish line. [16 points] velocity (m/s) 45 25 -time (S) 6 (a) What is the car's velocity after one second? [3] (b) How far has it...
Two cars are moving at a constant velocity when they are involved in a collision. What...
Two cars are moving at a constant velocity when they are involved in a collision. What kind of forces are acting to each other during the collision? After the collision both separate from each other. One care comes to rest after 0.50s with an average acceleration of 80.0 m/s^2 in the direction opposite that of the car's. What is its speed the speed, in km/h, of the car right after the collision? what rule can be used if you want...
Suppose a NASCAR race car rounds one end of the Martinsville Speedway. This end of the track is a turn with a radius of approximately 57.0 m. If the track is completely flat and the race car is traveling at a constant 27.5 m/s (about 62 mph) around the turn, what is the race car's centripetal (radial) acceleration? centripetal acceleration: 12.19 m/s2 Incorrect Which force is responsible for the centripetal acceleration in this case? O weight gravity friction normal What...
#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...
A race car traveling northward on a straight, level track at constant speed travels 4,139 m in 180 seconds. The return trip over the same track is made in 165 seconds. a) What is the average speed of the car in m/s for the first half of the trip? b What is the average speed of the car over the entre trip?
A race car travels northward on a straight, level track at a constant speed, traveling 0.937 km in 12.1 sec. The return trip over the same track is made in 26 sec. (a) What is the average velocity of the car for the FIRST leg of the trip? (b) What is the average velocity of the car for the SECOND leg of the trip? (c) What is the average velocity of the car for the WHOLE trip? Part Answer Units...
A race car enters the circular portion of a track that has a radius of 63 m. When the car enters the curve at point P, it is traveling with a speed of 120 km/h that is increasing at 5 m/s2. Three seconds later, determine the xand y components of velocity and acceleration of the car. 120 km/h
4.) If a belt is moving between two wheels is moving with a speed of 10m/s, what is the angular velocity of the smaller wheel? R1- 10cm o R2 = 55cm 5.) If a 60g ball hits the floor traveling with a speed of 6m/s and rebounds with a speed of 4m/s, what is the magnitude of the average impulse provided by the floor on the ball? 6.) A NASCAR racer is traveling with an initial angular velocity of 0.105...
2. The following velocity-vs-time graph represents the motion of a race car during the first few sec- onds of a race. The track may be assumed to be straight during this period. Afterwards the car continues to travel at a constant speed around the rest of the track, ending its lap back on the start/finish line. [16 points] velocity (m/s) 45 25 -time (S) 6 (a) What is the car's velocity after one second? [3] (b) How far has it...
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