A 1500 kg car traveling to the north is slowed down uniformly from initial velocity of 20 m/s by a 6000 N braking force acting opposite the car’s motion.  Use the impulse-momentum theorem to answer the following questions  What is the car’s velocity after 2.00 s? How far does the car move during 2.00 s? How long does it take the car to come to a complete stop?

With what impulse does a 0.30-kg newspaper have to be thrown to give it a velocity of 3.4 m/s? Express your answer to two significant figures and include the appropriate units. F-Δt=________

When there is motion is both directions, state which direction is positive at the START of the problem.  For the impulse-momentum and the conservation of momentum problems: Plug your GIVEN VALUES into the equation FIRST then do the algebra. Use the following equations: F t = m vf -m vi  m1 vi1 + m2 vi2 = m1 vf1 + m2 vf2 m1 vi1 + m2 vi2 = (m1 + m2) vf (m1 + m2) Vi = m1 vf1 + m2 vf2 4. ) Tom is standing on a 32.2 pound sled sliding across a frozen lake at 1.50 ft/s. Tom weighs 128.8 pounds. He jumps off the sled in the opposite direction at 0.50 ft/s.  a. ) what is the velocity of the sled after Tom jumps off? Show all unity conversion step by step - if any.

Kara Moore was applying make up in the parking lot. Unaware that Lisa's car was stopped in her lane 30 ft ahead. Kara rear ended Lisa's car. Kara's car was 1300 kg and was moving at 11 m/s and completely stopped after hitting Lisa's car in 0.14 sec. What is the net impulse experienced by Kara's car.

Use the impulse-momentum theorem to find how long a stone falling straight down takes to increase its speed from 5.5 m/s to 10.4 m/s.

Now consider the interactions between the two objects that undergo a collision. Apply the Impulse-Momentum Theorem to explain the changes in the momentum of the individual objects and that of the entire system. Use appropriate physics terminology in your discussion. As a matter of semantics, we say that a force is exerted on an object by another object; an impulse is imparted to an object by another object; an object or system can have, gain, or lose momentum; momentum is transferred from one object or system to another object or system.

When there is motion is both directions, state which direction is positive at the START of the problem.  For the impulse-momentum and the conservation of momentum problems: Plug your GIVEN VALUES into the equation FIRST then do the algebra. Use the following equations: F t = m vf -m vi  m1 vi1 + m2 vi2 = m1 vf1 + m2 vf2 m1 vi1 + m2 vi2 = (m1 + m2) vf (m1 + m2) Vi = m1 vf1 + m2 vf2 3.) A 0.196 N bullet strikes a 10.00 kg block of wood, which is initally at rest. The bullet becomes lodged in the block of wood and afterwards both are traveling at 1.25 m/s.  a. ) what was the velocity of the bullet before striking the block of wood?

As fast as.

A car is stopped for a traffic signal. When the light turns green, the car accelerates, increasing its speed from 0 to 5.40 m/s in 0.882 s. What is the magnitude of the linear impulse experienced by a 72.0-kg passenger in the car during the time the car accelerates? What is the magnitude of the average total force experienced by a 72.0-kg passenger in the car during the time the car accelerates?

A 0.508 kg ball, initially moving with a speed of 3.3 m/s bounces off a wall and then moves with a speed magnitude half of its original directed in the opposite direction. If the ball is in contact with the wall for 5.8 m/s, what is the magnitude of the average force that the wall exerts on the ball? A. 147.32 N B. 433.55 N C. None of the above