# A car is moving at 10 m/s when it begins to be accelerated at 2.5m/s2. how long does the car take to reach a speed of 25 m/s? How far does it go during this period?

22,394 results
1. ## Physics

Two stunt drivers drive directly toward each other. At time t=0 the two cars are a distance D apart, car 1 is at rest, and car 2 is moving to the left with speed v_0. Car 1 begins to move at t=0, speeding up with a constant acceleration a_x. Car 2

2. ## physics

A car begins at rest at t0 = 0. The car starts moving and finally covers a distance d = 617 m in a time tf = 105 s. In a coordinate system with north being the positive x-direction, the car's motion is in the southern direction. What was the car's average

3. ## Physics

During a road test,a driver brakes a 1420kg car moving at 64.8km/h [W]. The car slows down and comes to a stop after moving 729m [W]. What is the net force acting on the car?

4. ## Physics

Two cars are driving at the same constant speed on a straight road, with car 1 in front of car 2. Car 1 suddenly starts to brake with constant acceleration and stops in 10 m. At the instant car 1 comes to a stop, car 2 begins to brake with the same

5. ## physics

A 13 g toy car moving to the right at 22 cm/s has a head-on nearly elastic collision with a 22 g toy car moving in the opposite direction at 30 cm/s. After colliding, the 13 g car moves with a velocity of 43 cm/s to the left. Find the speed of the second

6. ## physics =)

A race car has a mass of 710 kg. It starts from rest and travels 40.0 m in 3.0 s. The car is uniformly accelerated during the entire time. What net force is exerted on it?

7. ## Math

The time it takes to cover the distance between two cities by car varies inversely with the speed of the car. The trip takes 3 hours for a car moving at 40 mph. How long does the trip take for a car moving at 60 mph?

8. ## physics

Question 11 Unsaved A car of mass 1200 kg travels along a horizontal road at a speed of 10 m s-1. At the time it begins to accelerate at 0.2 m s-2, the total resistive force acting on the car is 160 N. What is the total output power developed by the car as

9. ## pysic

A 328 kg car moving at 19.1 m/s hits from behind another car moving at 13.0m/s in the same direction. If the second car has a mass of 790kg and a new speed of 15.1m/s what is the velocity of the first car after the collision?

10. ## Physical Science

Two 125 kg bumper cars are moving toward each other in opposite directions. Car X is moving at 10 m/s and Car Z at –12 m/s when they collide head–on. If the resulting velocity of Car Z after the collision is 10 m/s, what is the velocity of Car X after

11. ## Physical Science

A 1000-kg car is moving east at 80 km/h collides head on with a 1500-kg car moving west at 40 km/h, and the two cars stick together. Which way does the wreckage move and with what initial speed?

12. ## Physics

An open train car moves with speed 11.3 m/s on a flat frictionless railroad track, with no engine pulling the car. It begins to rain. The rain falls straight down and begins to fill the train car. The speed of the car 1. increases. 2. decreases. 3. stays

13. ## physics

a 2kg car moving towards the right at 4 m/s collides head on with a 8 kg car moving towards the left at 2 m/s and they stick together. After the collision, the velocity of the combined boides is

14. ## Science

Which phrase best describes a car that has positive acceleration. A. The car is moving slowly. B. The care is slowing down. C. The car is speeding up. D. The car is moving fast. I think its it`s C. But i need help. Please

15. ## physics

In a high speed chase, a policeman's car bumps a criminal's car directly from behind to get his attention. The policeman's car is moving at 40 m/s to the right and has a total mass of 1800 kg. The criminal's car is initially moving in the same direction at

16. ## Calculus

Two cars are moving with a constant speed towards finish marker, car A is moving from the north at 16km/hr and car B is moving rom east, when equidistant from the marker the cars are 18km apart and distance between them is decreasing at rate of 19km/hr.

17. ## physics

a car, moving at 100 mi/hr, passes a stationary police car whose siren has a frequency of 500 Hz. what is the frequency change heard by observer in the moving car as he passes the police car? the velocity of sound in air is 343 m/s. ( 1 mi= 1.609 km).

18. ## Physics

A 1000-kg car moving east at 80 km/h collides head-on with a 1500-kg car moving west at km/h, and the two cars stick together. (a) Which way does the wreckage move and with what initial speed? (b) How much KE is lost in the collision?

19. ## Physics

A car is moving at 10 m/s when it begins to be accelerated at 2.5m/s2. how long does the car take to reach a speed of 25 m/s? How far does it go during this period?

20. ## Physics

A car starts to move nd accelerated at 4m/s2 for 8 seconds (u=0 V=32m/s a=4 m/s2 t=8) How fast is it moving? How far does it travel in this time?

21. ## physics

A police officer investigating an accident estimates that a moving car hit a stationary car at 24km/h . If the moving car left skid marks 45m long, and if the coefficient of kinetic friction is 0.71, what was the initial speed of the moving car? Express

22. ## physics

A car is moving down a street at 51 km/h. A child suddenly runs into the street. If it takes the driver 0.97 s to react and apply the brakes, how many meters will the car have moved before it begins to slow down?

23. ## Science

1. A roach moves down the hall at 1.2 m/s. When he sees the janitor coming down the hall, he begins to run. After 3.2 s, he is moving at 3.6 m/s. What is his acceleration? 2. While waiting for his Mom to come out of the hairdresser's, Sean accidentally

24. ## math

Use the following situation to answer the next four questions. The formula for these questions came from the police department. They use this formula to determine the speed at which the car was going when the driver applied the brakes, by measuring the

25. ## physics

Two cars both travel along a straight road Northbound. At t = 0, the car 1 is 190.6 m further north than car 2. Also at t = 0, car 1 is travelling at 24.3 m/s, and car 2 is travelling at 5.7 m/s. Car 1 is slowing down with an acceleration of magnitude 0.28

26. ## Physics

1.A race car has a mass of 707 kg. It starts from rest and travels 42.0 m in 3.0 s. The car is uniformly accelerated during the entire time. What net force is exerted on it?

27. ## Physics

A race car has a mass of 715 kg. It starts from rest and travels 38.0 m in 3.0 s. The car is uniformly accelerated during the entire time. What net force is exerted on it?

28. ## college physics

i need solutions for all this problems...help please.... 1.) an electron moving at a speed of 4x10 power of 6 m/s, shot through a sheet of paper which is 3x10 to power of -5 m thick. the electron energyfrom the sheet with with a speed of 2x10 to the power

29. ## physics

A car moving at 10m/s when it begins to be accelerated at 2.5m/s^2. (a)How long does the car take to reach a speed of 25m/s? (b) How far does it go during this period

30. ## physics

A car begins at rest at t0 = 0. The car starts moving and finally covers a distance d = 617 m in a time tf = 105 s. In a coordinate system with north being the positive x-direction, the car's motion is in the southern direction (see figure. What was the

31. ## Physics

A car, moving along a straight stretch of highway, begins to accelerate at 0.0235 m/s 2 It takes the car 67.8 s to cover 1 km.How fast was the car going when it first began to accelerate?

32. ## PHYSICS

A car, moving along a straight stretch of highway, begins to accelerate at 0.024 m/s 2 . It takes the car 61.8 s to cover 1 km. How fast was the car going when it first began to accelerate?

33. ## Physics

A car, moving along a straight stretch of high- way, begins to accelerate at 0.0377 m/s2. It takes the car 34.3 s to cover 1 km. How fast was the car going when it first began to accelerate? Answer in units of m/s.

34. ## physics

A car, moving along a straight stretch of high-way, begins to accelerate at 0.0449 m/s2. It takes the car 64.6 s to cover 1 km. How fast was the car going when it first began to accelerate? Answer in units of m/s.

35. ## Physics

A car, moving along a straight stretch of high- way, begins to accelerate at 0.014 m/s2. It takes the car 23.2 s to cover 1 km. How fast was the car going when it first began to accelerate? Answer in units of m/s.

36. ## science

a car, moving at 10m/s, is accelerated at a rate of 5m/s2 over a 4 second period. What would the speed have been after three seconds?

37. ## Physics

9)A car, moving along a straight stretch of highway, begins to accelerate at 0.0153 m/s 2 . It takes the car 29.2 s to cover 1 km. How fast was the car going when it ﬁrst began to accelerate? Answer in units of m/s

38. ## physics

A car, moving along a straight stretch of highway, begins to accelerate at 0.0218 m/s 2 . It takes the car 86 s to cover 2 km. How fast was the car going when it ﬁrst began to accelerate? Answer in units of m/

39. ## Physics B

A car, moving along a straight stretch of highway, begins to accelerate at 0.0261 m/s2. It takes the car 48.6 s to cover 1 km. How fast was the car going when it first began to accelerate? Answer in units of m/s Couldn't find a formula for this :(

At rest, a car’s horn sound at the note A(440Hz) The horn is sounded while the car is moving down the street. A bicyclist moving the same direction with one third the car’s speed hears a frequency of 415 Hz. What is the speed of the car? Is the cyclist

41. ## physics

A car of mass 200g moving at 15.0m/s is accelerated to 25.0m/s in a time of 10.0 seconds determine the accelerating force and calculate the work done on the body

42. ## science

Two stunt drivers drive directly toward each other. At time t=0 the two cars are a distance D apart, car 1 is at rest, and car 2 is moving to the left with speed v0. Car 1 begins to move at t=0, speeding up with a constant acceleration ax. Car 2 continues

43. ## physics

A car is moving down a street at 51 km/h. A child suddenly runs into the street. If it takes the driver 0.62 s to react and apply the brakes, how many meters will the car have moved before it begins to slow down?

44. ## Physics

A car is moving down a street at 67 km/h. A child suddenly runs into the street. If it takes the driver 1.26 s to react and apply the brakes, how many meters will the car have moved before it begins to slow down?

45. ## physics

The driver of a car is initially moving at a constant speed of 71.8 km/h when a traffic light turns red. If a 0.550 s reaction time is required before the brakes can be applied, what is the distance in meters traveled by the car before it begins to slow

46. ## physics

The driver of a car is initially moving at a constant speed of 76.0 km/h when a traffic light turns red. If a 0.455 s reaction time is required before the brakes can be applied, what is the distance in meters traveled by the car before it begins to slow

47. ## physics

a car is moving down a street at 55km/h.A child suddenly runs into the street. If it takes a driver 0.75s to react and apply the brakes, how many meters will the car have moved before it begins to slow down?

48. ## physics

a car is moving at 17.7 m/s when it begins to slow down with a deceleration of 2.5 m/s2. how long does it take to travel 20 meters as it slows down

49. ## french

please can you help me find the translations on the agenda = 2 words first one begins with a to eat = 2 words first one begins with s i think it might be 'se manger' to spend on = 2 words first one begins with c to remember = 2 words first one with s i

50. ## Physics

A car, moving along a straight stretch of highway, begins to accelerate at 0.0442 m/s^2. It takes the car 30.8 s to cover 1 km. How fast was the car going when it first began to accelerate? Answer in units of m/s. I tried converting 30.8 km/sec to m/s then

51. ## Physics

A certain car is capable only of accelerat ing at 3.0m/s 2 , braking (decelerating) at 5.0m/s 2 , and moving at constant velocity. The car is init ially located 100m from a road sign. The driver, starting from rest, begins to accelerat e towards the sign.

52. ## physics

If you toss a ball straight up while in a closed train car and the ball hits the front of the car, then the train car could be a) moving backward at constant speed b) moving forward and slowing down c) moving forward and speeding up d) all of these are

53. ## physics

If you toss a ball straight up while in a closed train car and the ball hits the front of the car, then the train car could be a) moving backward at constant speed b) moving forward and slowing down c) moving forward and speeding up d) all of these are

54. ## Physics

a car moving at 10 metre per second was uniformly accelerated until it's velocity reaches 20 metre per second.It then maintains this speed for another 20s after which the brakes were applied and the vehicle was finally brought to rest after 10 seconds

55. ## Physics

A drunken driver crashes his car into a parked car that has its brakes set. The two cars move off together (perfectly inelastic collision), with the locked wheels of the parked car leaving skid marks 6.0 m in length. If the mass of the moving car is 2130kg

56. ## Physics

An initially motionless test car is accelerated uniformly to 135 km/h in 8.08 seconds before striking a simulated deer. The car is in contact with the faux fawn for 0.695 seconds, after which the car is measured to be traveling at 87.5 km/h. What is the

57. ## physics

A car moving at 35 mi/h is stopped by jamming on the brakes and locking the wheels. The car skids 53 ft before coming to rest. How far would the car skid if it were initially moving at 56 mi/h?

58. ## Physics

A car begins to descend a 15.0o hill at a speed of 75.0 Km/hr and the driver puts the clutch in and lets the car coast down the hill with a vertical drop of 152 m. At the bottom of the hill the road begins to climb again at an angle of 8o until the road

59. ## physics

a car moving at 10ms - was uniformly accelerated for 5s until it velocity reaches 20ms -. it then maintain the speed for another 20s after which the brakes were applied as the vehicle was finally brought to rest in a further 10s.draw the velocity time

60. ## physics

2 cars are in a race the first car is 200m ahead of the second car.the first car is moving with a uniform velocity of 30m/s while the second car starts from rest and accelerate to a rate of 4m/s how far and how long will it take the second car to meet the

61. ## Physics

A car with a total mass of 1.48 103 kg has wheels of radius 33.5 cm and moment of inertia 0.810 kg · m2. (a) Find the car's translational kinetic energy when the car is moving at a speed of 30.0 m/s. (b) Find the car's rotational energy when the car is

62. ## Physics

A car accelerates uniformly at 3 m/s/s in order to overtake another car. If the initial speed was 30 m/s and the car accelerated until its speed was 40 m/s –For how long did it accelerate? –How much distance was covered in that time?

63. ## math

Car B is 48km ahead of Car A. If Car Bis not moving and Car A is moving at 48km/h, how long will it take Car A to reach Car B?

64. ## physics

If you toss a ball straight up while in a closed train car and the ball hits the front of the car, then the train car could be a) moving backward at constant speed b) moving forward and slowing down c) moving forward and speeding up d) all of these are

65. ## Physics

A car is traveling at 72 km/hr. The driver begins to apply the brakes and the begins to slow with a constant acceleration (a). After the brakes are applied, the car stops in a distance of 100 m. What is the acceleration? My teacher gave the class a list of

66. ## physics

A car moving at a speed of approximately 176.5 km/h. 923 m in front of the car, there is a truck moving at a speed of 84.2 km/h in the same direction. 1.What is the name of the physical process that would occur if both vehicles kept moving at constant

67. ## Physics

I know how to get the speed if it accelerated the whole time. How do I calculate the cruising speed? Starting from rest, a car travels 1,350 meters in 1 min. It accelerated at 1 m/s^2 until it reached its cruising speed. Then it drove the remaining

68. ## physics

In 10 seconds a car accelerates 3m/s^2 to 90m/s. How fast was the car going before it accelerated?

69. ## Physics

Car A passes a light post moving at 25m/s and continues at this speed. Two seconds later, another car passes the light post moving at 40m/s. Assuming no acceleration of either car. a)How much time will it take for the second car to catch up with the first

70. ## physics

Two cars (A and B) of mass 1.1 kg collide. Car A is initially moving at 18 m/s, and car B is initially moving in the opposite direction with a speed of 9 m/s. The two cars are moving along a straight line before and after the collision. (Enter the

71. ## Physics

A 1000 kg car is accelerated from rest to 100 miles/hour in 10 seconds. Find the output power of this car

72. ## physics

a car is moving foward at 15.7m/s. a person in the bus throws a ball horizontally toward the front of the car at 17.5 m/s from your perspective as an observer outside the car the tennis ball appears to moving at what velocity?

73. ## math

Use the following situation to answer the next four questions. The formula for these questions came from the police department. They use this formula to determine the speed at which the car was going when the driver applied the brakes, by measuring the

74. ## algebra

Use the following situation to answer the next four questions. The formula for these questions came from the police department. They use this formula to determine the speed at which the car was going when the driver applied the brakes, by measuring the

75. ## physics

If you were standing in an enclosed car moving at constant velocity, would you have learned in some special way to compensate for the car’s motion? What if the car were moving with constant acceleration? Explain.

76. ## Physics

On its way to Peace River, Alberta, a car enters a passing zone on the highway. The car is 25.0 m behind a truck and both vehicles are travelling at 41.0 m/s. The car accelerates uniformly to overtake the truck and after the car has travelled 280m, it is

77. ## Physics

A 1000 kg car moving at 27 m/s from left to right collides head-on with a 1500 kg car moving at 30 m/s right to left. A) Determine the magnitude and direction of the velocity of the wreckage after the collision. B) If a 1000 kg car moving at 36 m/s from

78. ## Physics

A car drives at a speed of 28m/s along a road parallel to a railroad track. A train traveling at 15m/s sounds a horn that vibrates at 300 Hz. If the train and car are moving toward each other, what frequency of sound is heard by a person in the car? If the

79. ## physics

Consider two cars, a very large one like a Hummer (mass 5m) and a small one like a Mini Cooper (mass m), both starting at the same point race toward the edge of a cliff. Assume that each car is accelerated by a constant force (same size force on each car)

80. ## physics5

A race car has a mass of 707 kg. It starts from rest and travels 40 m in 4.0 s. The car is uniformly accelerated during the entire time. What net force is applied to it?

81. ## physics

A race car has a mass of 705 kg. It starts from rest and travels 39.0 m in 3.0 s. The car is uniformly accelerated during the entire time. What net force is exerted on it?

82. ## Physics

a car is moving at 100 km/hr is 0.5 km behind another car moving at 60 km/h how far does the first car travel before it catches the second car?

83. ## Physics

A sleepy man drives a car along a straight section of highway at a constant speed of 89.6 km/h. His eyes begin to close, and his car moves at an angle of 4.90° relative to the road. For how long can his attention lapse before the car begins to move across

84. ## principles of physics

A fast-moving massive car has a head-on collision with a slow-moving light car. Upon which is the impulse greater? A) The massive car. B) The light car. C) Impulse is the same on both. D) More information is needed to correctly answer this.

85. ## algebra

The time it takes to cover the distance between two cities by car varies inversely with the speed of the car. The trip takes 5 hours for a car moving at 54 mph . How long does the trip take for a car moving at 45 mph ?

86. ## pop

A fast-moving massive car has a head-on collision with a slow-moving light car. Upon which is the impulse greater? A) The massive car. B) The light car. C) Impulse is the same on both. D) More information is needed to correctly answer this.

87. ## physics

the maximum possible speed a certain car can achieve is 80 m/s (about 180 mph) the car covers a distance of 1km while accelerating up to this speed from rest how fast is the car moving at the halfway point of 500m (the answer is not 40m/s) at what point is

88. ## physics

Car moving down road accelerates at uniform rate 2.8 m/s/s for 4.63 s to reach a speed of 106.7 m/s. 1) How fast was the car initially moving? 2) What distance did it travel during the a/c/c.?

89. ## Physics

A car of mass 120kg moving with a velocity of 30m/s overtake and collide with another car of mass 100kg moving with at 12m/s.After collision the two car separate with a relative velocity of 4m/s (1)calculate the velocity each car And (2) The loss in

90. ## physics-sound

A police car moving at 41 m/s is initially behind a truck moving in the same direction at 17 m/s. The natural frequency of the car's siren is 800 Hz. The change in frequency observed by the truck driver as the car overtakes him is __(Hz) Take the speed of

91. ## Physical Science

Two cars are moving in identical conditions, one car is moving 3 times how much farther will this fast car travel?

92. ## physics

A police car moving at 75m/s is initially behind a truck moving in the same direction at 14m/s. The natural frequency of the car's siren is 1000Hz. What is the change in frequency observed by the truck driver as the car overtakes him?

93. ## Physics

A 1300-kg car moving north at 27.0 m/s is struck by a 2165-kg car moving east at 17.0 m/s. The cars are stuck together. How fast and in what direction do they move immediately after the collision?

94. ## Physics

A 1405-kg car moving north at 27.0 m/s is struck by a 2165-kg car moving east at 10.0 m/s. The cars are stuck together. How fast and in what direction do they move immediately after the collision?

95. ## physics

A 1300-kg car moving north at 27.0 m/s is struck by a 2165-kg car moving east at 17.0 m/s. The cars are stuck together. How fast and in what direction do they move immediately after the collision?

96. ## Physical Science

A 1000-kg car moving at 80 km/h collides head on with a 100-kg car moving west at 40km/h, and the two cars stick together. Which way does the wreckage move and with what initial speed?

97. ## Physics

A 1365-kg car moving north at 27.0 m/s is struck by a 2165-kg car moving east at 12.0 m/s. The cars are stuck together. How fast and in what direction do they move immediately after the collision?

98. ## Child Development

Recognizing the decreasing volume in the sound of a car engine goes with the sight of a car moving away rather than moving toward you is an example of _______ perception. A) Direct B) Depth C) Intermodal D) Constructivist Is it C

99. ## Calculus

A car traveling 96ft/s begins a negative acceleration at a constant rate of 12ft/s^2. After how many seconds does the car come to a stop? How far will the car have traveled before stopping? Anti-derivatives are involved somewhere in the 2nd part I believe.

100. ## physics

at any instant a car is observed to be moving at a velocity of 10 m/s. Five seconds later the car is found to be moving at a velocity of 20 m/s. how far did the car travel in 5 s?