# Momentum and Impulse - Page 5

Questions

- An object with a mass of #5 kg# is traveling at #6 m/s#. If the object is accelerated by a force of #f(x) = 2x^2-x# over #x in [0, 9]#, where x is in meters, what is the impulse at #x = 3#?
- A compact car, mass 650 kg, is moving at 100 km/hr toward the south. How do you find the magnitude and direction of its momentum? A second car, with a mass of 2175 kg, has the opposite momentum. What is its velocity?
- Which has greater momentum, a semi truck at rest or a bicycle in motion?
- What are the dimensional units of #A# and #B# if a volume, #V#, is given by the equation #V=A*t^3+B/t#?
- How is impulse related to momentum?
- Two groups of canoeists meet in the middle of a lake. A person in canoe 1 pushes on canoe 2 with a force of 46 N to separate the canoes. If the mass of canoe 1 and its occupants is 130 kg, and the mass of canoe 2 and its occupants is 250 kg, after 1.20s?
- Which has more momentum, a #7kg# object moving at #4m/s# or a #8kg# object moving at #5m/s#?
- Which has more momentum, an object with a mass of #9kg# moving at #8m/s# or an object with a mass of #6kg# moving at #14m/s#?
- You're driving down the highway and a bug spatters into your windshieId. Which undergoes the greater change in momentum, the car, or the bug?
- How much momentum does a #2 kg# object moving at #1/2 m/s# have?
- The velocity of an object with a mass of #2 kg# is given by #v(t)= 3 t^2+ 2 t +8#. What is the impulse applied to the object at #t= 4 #?
- How much momentum does a #14 kg# object moving at #8 m/s# have?
- A subcompact car, mass 1,000 kg, runs into and sticks to an at-rest, 2,200 kg SUV. lf their final speed is 4.7 m/s, what was the smaller car's initial speed?
- The kinetic energy of an object with a mass of #3 kg# constantly changes from #50 J# to #270 J# over #5 s#. What is the impulse on the object at #3 s#?
- Two cars collide head-on. In which of the following scenarios would you expect the occupants to suffer greater injury? If the cars stick together, or if the cars rebound?
- Which has more momentum, an object with a mass of #9kg# moving at #8m/s# or an object with a mass of #12kg# moving at #1m/s#?
- The velocity of an object with a mass of #4 kg# is given by #v(t)= sin 3 t + cos 7 t #. What is the impulse applied to the object at #t= (5pi)/12 #?
- The position of an object with a mass of #3 kg# is given by #p(t)= t^3-3t^2+ 5 #. What is the impulse applied to the object at #t= 3 #?
- A bullet traveling at 250 meters per second is brought to rest by an impulse of 5.00 newton-seconds. What is the mass of the buIIet?
- Which has more momentum, a #6kg# object moving at #7m/s# or a #3kg# object moving at #5m/s#?