1. physics

    A firetruck is traveling at a velocity of +20 m/s in the x direction. As the truck passes x=63m it shoots a tennis ball backwards with a speed of 20 m/s relative to the truck at an angle of 39° from a height of 1.4 m. Neglect air resistance. At what x
  2. physics

    A firetruck is traveling at a velocity of +20 m/s in the x direction. As the truck passes x=63m it shoots a tennis ball backwards with a speed of 20 m/s relative to the truck at an angle of 39° from a height of 1.4 m. Neglect air resistance. At what x
  3. physics

    A firetruck is traveling at a velocity of +20 m/s in the x direction. As the truck passes x=63m it shoots a tennis ball backwards with a speed of 20 m/s relative to the truck at an angle of 39° from a height of 1.4 m. Neglect air resistance. At what x
  4. physics

    1.A firetruck is traveling at a velocity of +20 m/s in the x direction. As the truck passes x=63m it shoots a tennis ball backwards with a speed of 20 m/s relative to the truck at an angle of 39° from a height of 1.4 m. Neglect air resistance. At what x
  5. physics

    1.A firetruck is traveling at a velocity of +20 m/s in the x direction. As the truck passes x=63m it shoots a tennis ball backwards with a speed of 20 m/s relative to the truck at an angle of 39° from a height of 1.4 m. Neglect air resistance. At what x
  6. physics

    A person riding in the back of a pickup truck traveling at 60km/h on a straight, level road throws a ball with a speed of 10km/h relative to the truck in the direction of the truck's motion.What is the velocity of the ball relative to a stationary observer
  7. physics

    A person riding in the back of a pickup truck traveling at 60km/h on a straight, level road throws a ball with a speed of 10km/h relative to the truck in the direction of the truck's motion.
  8. physics

    A truck is traveling with a uniform velocity 24 m/s, when it passes a car at rest, at this instant the car starts to move and accelerate at the rate of 6m/s^2 in the same direction as the truck. a.) How long will it take the car to overtake the truck b.)
  9. physic

    A police car is travelling in a straight line with constant speed vp.A truck travelling in the same direction with speed 3/2 vp passes the police car.The truck driver realizes that she is speeding and immediately begins to slow down at a constant rate
  10. relative velocity please help exam tom.

    the paper delivery boy tires to throw the paper ubti your narrow driveway without slowing down. his pickup truck travels at 10 mph and he throws the paper at 20 mph just as the truck passes the drive way. a) in what direction should he throw the paper in
  11. Physics

    A truck is traveling at a speed of 23.0 m/s along a level road. A crate is resting on the bed of the truck, and the coefficient of static friction between the crate and the truck bed is 0.610. Determine the shortest distance in which the truck can come to
  12. Gen physics

    A truck is traveling at a speed of 33.1 m/s along a level road. A crate is resting on the bed of the truck, and the coefficient of static friction between the crate and the truck bed is 0.632. Determine the shortest distance in which the truck can come to
  13. physics

    Ige confused, the truck driver sound the horn of the truck, which has a frequency of 260HZ. The speed of sound in air is 340m/s. an observer hears the sound while traveling in a bus toward the truck at a speed of 30m/s. a) what is the wavelength of the
  14. physics

    A construction worker riding in the tray of a truck traveling at 10 m/s, sees one of his friends passing and decides to jump off the truck. The magnitude of his initial speed of jumping is: (a) zero (b) Less than the truck's (c) Equal to that of the truck
  15. Physics..please help

    A car is traveling at 20m/s when it pulls out to pass a truck that is traveling at only 18m/s. The car accelerates at 2.0m/s^2 for 4.0 s and then maintains this new velocity. First it asked me to calculate the distance during acceleration so I used d =
  16. Quick Physics Check

    2. Which of the following examples does not show projectile motion? A. a tennis ball bounces across the net B. a ball is thrown at a downward angle toward a target on the ground C. a feather drifts to the ground D. a horseshoe is pitched at a stake Is it
  17. algebra

    Truck A leaves a truck stop traveling at 80 km/hr. Four hours later, truck BB leaves the same truck stop traveling in the same direction at 90 km/ hr. How long does it take truck B to catch up to truck A?
  18. physics(shortest distance

    A truck is traveling at a speed of 33.1 m/s along a level road. A crate is resting on the bed of the truck, and the coefficient of static friction between the crate and the truck bed is 0.632. Determine the shortest distance in which the truck can come to
  19. Physics

    Read each statement below. For each situation, calculate vi, vf, pi, pf, the impulse vector F􏰁t, and the amount of force needed for the change to occur. All situations refer to a truck with a mass of 2840 kg. 1. The truck has a velocity of 8.30
  20. physics

    while standing on an open truck moving at a velocity of 35m/s, a man sees a duck flying diresctly overhead. The man shoots an arrow at the duck and misses it.. the arrow leaves the bow at a vertical velocity of 98m/s. the truck accelerates to a constant
  21. Physics

    A truck of mass 8,000 kg is traveling along a level road at an initial speed of 25 m/s. The driver then shifts into neutral so that the truck is coasting, and the truck gradually slows to a final speed of 13 m/s. (a) Find the total work done on the truck.
  22. dynamics of rigid bodies

    10. The flatbed truck is traveling at constant speed of 60 kph up the 15% grade when the 100 kg crate which it carries is given a shove which imparts to an initial relative velocity x = 3m/s towards the rear of the truck. If the crate slides a distance x =
  23. physics

    A 4000 kg truck traveling at constant velocity and a braking force of 20000 N is suddenly applied. It takes 6 seconds for the truck to stop. a) what is the deceleration of the truck? b) what is the velocity of the truck before the brakes were applied c)
  24. physics

    A car with a mass of 980 kg is initially traveling east toward an intersection with a speed of vc = 18.9 m/s and a 1500 kg pickup is traveling north toward the same intersection. The car and truck collide at the intersection and stick together. After the
  25. physics

    A 1,225-kg car traveling initially with a speed of 25.0 m/s in an easterly direction crashes into the rear end of a 8,500-kg truck moving in the same direction at 20.0 m/s. The velocity of the car right after the collision is 18.0 m/s to the east. (a) What
  26. physics

    A truck on a straight road starts from rest and accelerates at 2.0 m/s2 until it reaches a speed of 20 m/s. Then the truck travels for 20 s at constant speed until the brakes are applied, stopping the truck in a uniform manner in an additional 5.0 s. (a)
  27. physics

    A truck on a straight road starts from rest, accelerating at 2.00 m/s2 until it reaches a speed of 11.0 m/s. Then the truck travels for 65.0 s at constant speed until the brakes are applied, stopping the truck in a uniform manner in an additional 5.00 s.
  28. physics

    A crate is resting on the bed of a moving truck. the coefficient of static friction between the crate and the truck bed is 0.40. the driver hits the brakes. assuming the truck is traveling on level ground, determine the maximum deceleration that the truck
  29. Physics

    At what speed would a 1140-kg car have the same momentum as a 12,600-kg truck traveling at 25 km/hr? The hint given to this problem is that I need to find the velocity of the car and truck. Converting 25 km/hr to m/s I get 6.944 m/s as the initial
  30. Physics - Please Check Answers ASAP

    Please check these over and see if any are incorrect? 1. The units of speed are: a) m/s ---> my answer b) m/s^2 and direction c) N d) m/s and direction 2. Which of Newton's Laws says you cannot touch anything without being touched? a) 4th b) 2nd c) 1st
  31. physics

    At car (1140-kg)traveling at 76.04 m/s and truck (12600-kg)traveling 6.88 m/s have a head-on collision and then stick together. What is their final common velocity (m/s)? (assume the car is going in the positive direction) What is the cars' change in
  32. Physics

    question 1 ..A 5 kg rock is thrown vertically upward at 12 m/s. How high did the rock rise? question 2 The driver of a truck traveling at 126 km/h on a highway sees a sign which indicated that 800 m after the sign the maximum speed will be 90 km/h . When
  33. Physics

    At the instant the traffic light turns green, an automobile that has been waiting at an intersection starts ahead with a constant acceleration of 2.50 m/s^2. At the same instant, a truck, traveling with a constant speed of 15.4 m/s, overtakes and passes
  34. Physics

    At the instant the traffic light turns green, an automobile that has been waiting at an intersection starts ahead with a constant acceleration of 2.50 . At the same instant, a truck, traveling with a constant speed of 15.4 , overtakes and passes the
  35. Physics

    A truck on a straight road starts from rest, accelerating at 2.00 m/s2 until it reaches a speed of 32.0 m/s. Then the truck travels for 76.0 s at constant speed until the brakes are applied, stopping the truck in a uniform manner in an additional 5.00 s.
  36. Phsycis 203

    You're standing by the roadside as a truck approaches, and you measure the dominant frequency in the truck noise at 1105Hz . As the truck passes, the frequency drops to 885Hz. What is the truck's speed?
  37. physics

    Rubber tires and wet blacktop have a coefficient of kinetic friction of 0.5. A pickup truck with a mass 750 kg traveling 30.0 m/s skids to a stop. (a) what is the size and direction of the frictional force that the road exerts on the truck? (b) Find the
  38. Physics

    In a World Cup soccer match, Juan is running due north toward the goal with a speed of 7.70 relative to the ground. A teammate passes the ball to him. The ball has a speed of 13.3 and is moving in a direction of 30.5 east of north, relative to the ground.
  39. College Physics!!!

    A truck on a straight road starts from rest accelerating at 2.0 m/s2 until it reaches a speed of 20 m/s. Then the truck travels for 20 s at constant speed until the brakes are applied, stopping the truck in a uniform manner in an additional 5.0 s. What is
  40. PHYSICS

    1)At the instant traffic turns green, an automobile that has been waiting at an intersection of roads accelerats with 5ms-2. At the same instant a truck traveling with a constant velocity. (i) how far beyond its starting point will be automobile overtake
  41. physics

    A delivery truck with a mass of 1700 kg is stopped in the street w/o its brakes on, when a small car hits it from behind. The car has a mass of 650 kg, and is traveling at 3.7m/s immediately before it hits the truck. Both the car and the truck have good
  42. MATH

    Two truck drivers leave a cafe at the same time, traveling in opposite direction. One truck goes 1 mph faster than the other one. After 4 hours, they are 396 miles apart. How fast is each truck going?
  43. Physics

    To save fuel, some truck drivers try to maintain a constant speed when possible. A truck traveling at 110.0 km/hr approaches a car stopped at the red light. When the truck is 211.7 meters from the car the light turns green and the car immediately begins to
  44. physics

    In a World Cup soccer match, Juan is running due north toward the goal with a speed of 7.80 m/s relative to the ground. A teammate passes the ball to him. The ball has a speed of 13.6 m/s and is moving in a direction of 32.5 degrees east of north, relative
  45. Physics

    At the instant a traffic light turns green, an automobile that has been waiting at an intersection starts moving forward with a constant acceleration of 2.00m/s(squared). At the same time a truck traveling with a constant speed of 18m/s, overtakes and
  46. Physics

    At the instant a traffic light turns green, an automobile that has been waiting at an intersection starts moving forward with a constant acceleration of 2.00m/s(squared). At the same time a truck traveling with a constant speed of 18m/s, overtakes and
  47. Physics

    At the instant the traffic light turns green, a car that has been waiting at an intersection starts ahead with a constant acceleration of 2.85m/s^2. At the same instant a truck, traveling with a constant speed of 19.0m/s, overtakes and passes the car. A)
  48. physics

    At the instant the traffic light turns green, an automobile that has been waiting at an intersection starts ahead with a constant acceleration of 2.10m/s2 . At the same instant, a truck, traveling with a constant speed of 15.1m/s , overtakes and passes the
  49. physics

    A truck of mass 8,000kg is traveling along a level road at an initial speed of 25m/s. The driver then shifts into neutral so that the truck is coasting, and the truck gradually slows to a final speed of 13m/s.
  50. Physics

    At car (1140-kg)traveling at 24.8 m/s and truck (12600-kg) have a head-on collision and then stick together. What is their final common velocity (m/s)? (assume the car is going in the positive direction) What is the cars' change in momentum in the above
  51. physics - i need A.S.A.P

    A truck traveling at a constant speed of 30.6 m/s passes by a police car which is at rest. The police officer catches up to the truck in 700 m, maintaining a constant acceleration. i)Calculate how long it took the police's car to overtake the truck speeder
  52. physics

    A 10,000kg truck traveling 5m/s collides with a 1,500 kg Volkswagen traveling in the opposite direction at 14 m/s after the collision the truck and Volkswagen stick together. A) what is the final speed and direction of the mess immediately after the
  53. physics

    A rugby player runs with the ball directly toward his opponent's goal, along the positive direction of an x axis. He can legally pass the ball to a teammate as long as the ball's velocity relative to the field does not have a positive x component. Suppose
  54. Physics I (Classical)

    Three students have been studying relative motion and decide to do an experiment to demonstrate their knowledge. The experiment plan calls for Jane to drive her pickup in a straight line across the parking lot at a constant speed of 11.2 m/s. Fred is in
  55. physics

    The driver of a car wishes to pass a truck that is traveling at a constant speed of 19.0 m/s . Initially, the car is also traveling at a speed 19.0 m/s and its front bumper is a distance 24.3 m behind the truck's rear bumper. The car begins accelerating at
  56. Physics

    A plane leaves Seattle, flies 85 mi at 22 degrees north of east, and then changes direction to 48 degrees south of east. After flying 115 mi in this new direction, the pilot must make an emergency landing on a field. The Seattle airport facility dispatches
  57. Physics

    A truck on a straight road starts from rest and accelerates at 2.8 m/s^2 until it reaches a speed of 16 m/s. Then the truck travels for 16s at constant speed until the brakes are applied,stopping the truck in a uniform manner in an additional 3.6 s. How
  58. physics

    A sports car, traveling 30 m/s, is 220 meters behind a truck. If the truck is traveling 22 m/s, how much time until the sports car passes the truck.
  59. physics

    If a truck is moving at 20m/s forward with relative to the ground, and a ball is fired 20m/s backward from the truck, what would be the velocity of the ball with respect to the ground?
  60. Physics

    A truck traveling at a constant speed of 40.0 km/h applies its brakes and comes to a complete stop in 5.0 s. The truck starts again and accelerates at a constant rate of 0.80 m/s2. After restarting, how far does the truck travel before reaching its
  61. physics

    suppose you are driving on a straight two lane road at a constant speed of 88 km/h truck travelling at a constant speed of 104 km/h approaches you.what is the truck's velocity relative to you.
  62. college physics

    a 1200kg car traveling initially qith a speeed of 25.0 m/s in an easterly direction crashes into the rear end of a 9,000kg truck moving in the same direction at 20.0 m/s. the velocity of the car right after the collision is 18.0 m/s to the east. what is
  63. physics

    A truck travels up a hill with a 7.2◦ incline. The truck has a constant speed of 19 m/s. What is the horizontal component of the truck’s velocity? Answer in units of m/s.
  64. physics

    A truck travels up a hill with a 13◦ incline. The truck has a constant speed of 18 m/s. What is the horizontal component of the truck’s velocity? Answer in units of m/s
  65. Physics

    A tennis player receives a shot with the ball (0.0600 kg) traveling horizontally at 51.0 m/s and returns the shot with the ball traveling horizontally at 31.0 m/s in the opposite direction. (Take the direction of the ball's final velocity (toward the net)
  66. Physics

    As a traffic light turns green, a waiting car starts with a constant acceleration of 6.0 m/second squared. At the instant the car begins to accelerate, a truck with the constant velocity of 21 m/ second squared passes in the next lane. HINT:Set the 2
  67. physics

    A truck is stopped at a stoplight. When the light turns green, the truck accelerates at 2.5 m/s squared. At the same instant, a car passes the truck going 15 m/s. Where and when does the truck catch up with the car?
  68. Physics

    A truck is stopped at a stoplight. When the light turns green, the truck accelerates at 2.0 m/s2. At the same instant, a car passes the truck going 13 m/s. Where and when does the truck catch up with the car? _________m (from the intersection)
  69. physics

    A truck of mass 8000 kg is accelerating at 5.0 m/s2 up a hill of inclination 4 degrees to the horizontal. The friction forces on the truck add up to 550 N. a) Draw a neat FBD of the truck indicating all the forces acting on it. b) What force does the truck
  70. science

    A truck is stopped at a stoplight. When the light turns green, the truck accelerates at 2.2 m/s2. At the same instant, a car passes the truck going 12 m/s. Where and when does the truck catch up with the car?
  71. math

    A 1000·kg car traveling with a velocity of 13·m/s north collides head-on with a 2000·kg truck traveling with a velocity of 17·m/s south. Immediately after the collision, the velocity of the car is 11·m/s south. Taking north as the positive direction,
  72. Physics 1

    A truck travels up a hill with a 5.7◦ incline. The truck has a constant speed of 22 m/s. What is the horizontal component of the truck’s velocity? Answer in units of m/s. NEED HELP ASAP! ASSIGNMENT DUE IN 15 MIN
  73. physics

    A truck travels up a hill with a 10 ◦ incline. The truck has a constant speed of 21 m/s. What is the horizontal component of the truck’s velocity? Answer in units of m/s What is the vertical component of the truck’s velocity? Answer in units of
  74. Physics

    A truck travels up a hill with a 15◦incline.The truck has a constant speed of 26 m/s. What is the horizontal component of the truck’s velocity? Answer in units of m/s What is the vertical component of the truck’s velocity? Answer in units of m/s
  75. physics

    what about a 5,000 kg truck rear-ends a 1200 kg car that has been traveling at 13 m/s, causing the truck to slow down from 14 m/s to 12 m/s and the car to speed up. What is the final velocity?
  76. physics

    a car and a truck starts from rest at the same instant with the car is behind the truck initially at the same distance. the truck has a constant acceleration of 4 ft/s^2 and the car has an acceleration of 6 ft/s^2. the car overtake the truck after the
  77. math

    At 9:00 a.m. a truck leaves the truck yard and travels west at a rate of 45 mi/hr. Two hours later, a second truck leaves along the same route, traveling at 55 mi/hr. When will the second truck catch up to the first?
  78. Physics

    A truck on a straight road starts from rest and accelerates at 3.0 m/s2 until it reaches a speed of 18.1 m/s. Then the truck travels for 24.5 s at constant speed until the brakes are applied, stopping the truck in a uniform manner in an additional 5.7 s.
  79. physics

    two men decide to use their cars to pull a truck stuck in mud. They attach ropes and one pulls with a force of 688 N at an angle of 28° with respect to the direction in which the truck is headed, while the other car pulls with a force of 896 N at an angle
  80. Physics

    A truck travels up a hill with a 10 incline. The truck has a constant speed of 16 m/s. What is the horizontal component of the truck’s velocity? Answer in units of m/s What is the vertical component of the truck’s velocity? Answer in units of m/s
  81. Physics - drwls?

    A 2000 kg truck traveling north at 38 km/hr turns east and accelerates to 55 km/hr. What is the change in the truck's kinetic energy? What is the magnitude of the change in the linear momentum of the truck? What is the direction of the change in linear
  82. Basic Physics

    While standing on an open bed of a truck moving at 35 m/s, and archer sees a duck flying directly overhead. The archer shoots an arrow at the duck and misses. The arrow leaves the bow with a vertical velocity of 98 m/s. a) how long does it remain in the
  83. General Physics

    two men decide to use their cars to pull a truck stuck in mud. they attach ropes and one pulls with a force of 526 N at an angle of 32deg with respect to the direction the truck is headed, while the other car pulls with a force of 788 N at an angle of
  84. Physics

    A truck travels at a constant speed of 28.0 m/s in the fast lane of a two-lane highway. It approaches a stationay car stopped at the side of the road. When the truck is still 1.2x10^2 m behind the car, the car pulls out into the slow lane with an
  85. Physics

    A 2600 kg truck traveling at 72 km/h slams on the brakes and skids to a stop. The frictional force between the truck and the road is 8200 N. Calculate the mechanical work required to stop the truck and the distance the truck travels before stops.
  86. Physics

    A 15.0 m long truck traveling at 40.0 mph has a braking capability of 5.00 m/s2 from this speed. It is approaching a 10.0-m wide intersection with a traffic light that is turning yellow. (a) What is the minimum distance the truck can be from the
  87. scienc

    I'm driving my car of mass 1000 kg at 100 km/hr when I accidentally hit the rear end of a truck of mass 5000 kg traveling in the same direction at 90 km/hr. My car and the truck lock together and move as a single object. Let F1 be the force the truck
  88. Physics

    An automobile and a truck start from rest at the same instant, with the automobile initially at some distance behind the truck. The truck has a constant acceleration of 2.15m/s2 , and the automobile an acceleration of 3.47m/s2 . The automobile overtakes
  89. physics

    Apparently, this website cannot display photos, so I'm gonna type my question: A railway truck of mass 8340kg traveling at 14.3ms-1 collides with another truck of mass 6420kg traveling at 8.78ms-1 in the same direction. 1. If after collision the two trucks
  90. Physic

    A car traveling 100 km/h is 200m away from a truck traveling 50 km/h (in the same direction). Assuming constant braking acceleration, what is the minimum deceleration the car must have if it is not to hit the truck? Can someone hint me on how I can start
  91. Physics

    Two men decide to use their cars to pull a truck stuck in mud. They attach ropes and one pulls with a force of 972 N at an angle of 28 degrees with respect to the direction in which the truck is headed, while the other car pulls with a force of 1401 N at
  92. physics

    A crate of mass 45.0 kg is being transported on the flatbed of a pickup truck. The coefficient of static friction between the crate and the truck's flatbed is 0.360, and the coefficient of kinetic friction is 0.160. (a) The truck accelerates forward on
  93. Physics

    A car is stopped at a stoplight. When the light turns green, it accelerates with a constant acceleration of 2.5 m/s^2. At the same instant, a truck passes the car in the same direction with a constant velocity of 15 m/s. how long until the car catches the
  94. Physics

    A truck is stopped at a stoplight. When the light turns green, the truck accelerates at 2.5 meters per second squared. At the same instant, a car passes the truck going 15 meters per second. Where and when does the truck catch up with the car?
  95. physics

    a truck is traveling to the right and slowing down. If we define a positive displacement to be motion to the right, the truck has...What Velocity and acceleration?
  96. physics

    A crate rests on a flatbed truck which is initially traveling at 17.8 m/s on a level road. The driver applies the brakes and the truck is brought to a halt in a distance of 33.1 m. If the deceleration of the truck is constant, what is the minimum
  97. Physics

    3. A Truck is pulled by a rope horizontally. The mass of the truck is 200kg and the tension in the rope is 500N. Assuming the initial velocity to be zero, how long will it take the truck to reach a speed of 8m/s. Ignore the friction : a) 2 second b) 4.5
  98. physics

    At the instant the traffic light turns green, an automobile starts with a constant acceleration a of 2.3 m/s2. At the same instant a truck, traveling with a constant speed of 9.4 m/s, overtakes and passes the automobile. (a) How far beyond the traffic
  99. Physics

    a car and a truck start from rest at the same instant with the car initially 50m behind the truck. The truck has a constant acceleration of 2m/s^2 and the car has a constant acceleration of 3m/s^2. The car overtakes the truck after how many seconds? At
  100. physics

    A 125 kg crate rests on the flatbed of a truck that moves at a speed of 15.0 m/s around an unbanked curve whose radius is 66.0m. This crate does not slip relative to the truck. Obtain the magnitude of the static frictional force that the truck bed exerts