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MIDTERM III PRACTICE

# MIDTERM III PRACTICE - Nicholas Charles Miller PHY183...

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Nicholas Charles Miller - PHY183, Spring 2010 - Physics for Scientists and Engineers I 1 Midterm III - Practice Nicholas Miller __________________________________ PRINT NAME: __________________________________ Do not open exam until instructed to do so.

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Nicholas Charles Miller - PHY183, Spring 2010 - Physics for Scientists and Engineers I 2 Midterm III - Practice
Nicholas Charles Miller - PHY183, Spring 2010 - Physics for Scientists and Engineers I 3 Midterm III - Practice 0 pt x=0 length=240 m, mass=100 kg mass=200 kg Ted Ted and his ice boat have a mass of 200 kg. A long 100 kg rope of length 240 m is laid out in a straight line next to the ice boat. Both Ted and the rope can slide without friction along the surface of the frozen lake. The rope is unattached to any object until Ted attaches the end of the rope to a winch which pulls the rope onto the boat at 120 m every minute, i.e., the entire rope is secured on the boat in two minutes. For the answers below assume positive refers to the right, negative to the left. What is Ted’s position at the moment just after all the rope as been completely secured onto the ice boat? (in meters) 1 . A circlecopyrt -80 B circlecopyrt -60 C circlecopyrt -40 D circlecopyrt -20 E circlecopyrt 0 F circlecopyrt 20 G circlecopyrt 40 H circlecopyrt 80 I circlecopyrt none of the above What is Ted’s velocity at the moment just after all the rope has been completely secured onto the ice boat? (in meters/minute) 2 . A circlecopyrt -80 B circlecopyrt -60 C circlecopyrt -40 D circlecopyrt -20 E circlecopyrt 0 F circlecopyrt 20 G circlecopyrt 40 H circlecopyrt 80 I circlecopyrt none of the above What is Ted’s velocity at the moment just after the winch turns on? (in meters/minute)" 3 . A circlecopyrt -80 B circlecopyrt -60 C circlecopyrt -40 D circlecopyrt -20 E circlecopyrt 0 F circlecopyrt 20 G circlecopyrt 40 H circlecopyrt 80 I circlecopyrt none of the above What is Ted’s acceleration at the moment just after the winch turns on? (in m/min 2 ) 4 . A circlecopyrt -80 B circlecopyrt -60 C circlecopyrt -40 D circlecopyrt -20 E circlecopyrt 0 F circlecopyrt 20 G circlecopyrt 40 H circlecopyrt 80 I circlecopyrt none of the above You are correct. Your receipt is 156-8317

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Nicholas Charles Miller - PHY183, Spring 2010 - Physics for Scientists and Engineers I 4 Midterm III - Practice 0 pt X41 X42 X43 X44 X45 X46 X47 X48 X4AX28X6FX75X74X20X6FX66X20X70X61X67X65X29 X49X28X69X6EX74X6FX20X70X61X67X65X29 The race car above travels at constant speed around a circular banked race track as shown. The designers chose a banking angle such that at 150 mph, a car could travel around the track even in slick conditions when frictional forces between the tires and road would disappear. Vectors A-J have directions shown in the picture, with vector J pointing out of the page in the direction the car is moving and I pointing opposite the car’s velocity. Vectors D and H are perpendicular to the surface, while vectors B and F are parallel to the surface. Vectors A and E are horizontal, while vectors C and G are vertical. For these questions, ignore the effects of air resistance.
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MIDTERM III PRACTICE - Nicholas Charles Miller PHY183...

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