(a) A 950 kg vehicle is traveling at a constant speed of 1.44 m/s due north. What is the total force (in N) on the vehicle? (Assume north is the positive direction. Indicate the direction with the sign of your answer.)
(b) What is the total force on the vehicle (in N) if it is moving due south? (Assume north is the positive direction. Indicate the direction with the sign of your answer.)
(a) A 950 kg vehicle is traveling at a constant speed of 1.44 m/s due north....
A 4534 kg truck traveling with a velocity of 11 m/s due north collides head-on with a 1197 kg car traveling with a velocity of 12 m/s due south. The two vehicles stick together after the collision. (a) What is the momentum of the truck prior to the collision? (b) What is the momentum of the car prior to the collision? (c) What is the magnitude and direction of the total momentum of the two vehicles after they collide? Use...
A 321-kg boat is sailing 10.0° north of east at a speed of 2.00 m/s. 30.0 s later, it is sailing 33.0° north of east at a speed of 4.10 m/s. During this time, three forces act on the boat: a 32.3-N force directed 10.0° north of east (due to an auxiliary engine), a 23.9-N force directed 10.0° south of west (resistance due to the water), and (due to the wind). Find the (a) the magnitude and (b) direction of...
A 1200·kg car traveling with a velocity of 12·m/s north collides head-on with a 2400·kg truck traveling with a velocity of 8·m/s south. Immediately after the collision, the velocity of the car is 4·m/s south. Take north as the positive direction (a) What is the velocity of the truck immediately after the collision? (b) What impluse is delivered to the car by the truck? (c) What impluse is delivered to the truck by the car?
A 1300 kg car moving at 5.4 m/s is initially traveling north in the positive y direction. After completing a 90° right-hand turn to the positive x direction in 4.1 s, the inattentive operator drives into a tree, which stops the car in 280 ms. What is the magnitude of the impulse on the car (a) due to the turn and (b) due to the collision? What is the magnitude of the average force that acts on the car (c)...
An Australian emu is running due west in a straight line at a speed of 16.2 m/s and slows down to a speed of 12.4 m/s in 9.4 s. (a) What is the direction of the bird's acceleration? north, south, east, or west (b) Assuming that the acceleration remains the same, what is the bird's velocity after an additional 2.0 s has elapsed? (Assume that due west is the positive direction. Indicate the direction with the sign of your answer.)...
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A 1000 kg car moving at 5.8 m/s is initially traveling north in the positive y direction. After completing a 90° right-hand turn to the positive x direction in 4.3 s, the inattentive operator drives into a tree, which stops the car in 220 ms. What is the magnitude of the impulse on the car (a) due to the turn and (b) due to the collision? What is the magnitude of the average force that acts on...
A passenger on a moving train walks at a speed of 2.30 m/s due north relative to the train. The train is traveling at 3.5 m/s due east relative to the ground. What are the magnitude and direction of the velocity of the passenger relative to the ground? magnitude m/s direction ° north of east
An ice hockey forward with mass 75.0 kg is skating due north with a speed of 5.50 m/s. As the forward approaches the net for a slap shot, a defensive player (mass 110 kg) skates toward him in order to apply a body-check. The defensive player is traveling south at 4.40 m/s just before they collide. If the two players become intertwined and move together after they collide, in what direction and at what speed do they move after the...
A girl on a skateboard (total mass of 40 kg) is moving at a speed of 15 m/s at the bottom of a long ramp. The ramp is inclined at 18° with respect to the horizontal. If she travels 13.4 m upward along the ramp before stopping, what is the net frictional force (in N) on her? (Assume the positive direction is upward along the ramp. Indicate the direction with the sign of your answer.)
A 3 30 kg boats sailing 10 Oe north of east at a speed of 1.60 m s. 31 0 s later, it is sailing 30.0° north of east at a speed of 3.50 m/s. During this time, three forces act on the boat: a 34.4-N force directed 10.0e north of east (due to an auxilary engine), a 20.9-N force directed 10.0° south of west (resistance due to the water), and E (due to the wind). Find the (a) the...