1.A car travels 90 km/h. How long does it take for it to travel 400 km?
a.4.1 h
b.4.2 h
c.4.3 h
d.4.4 h
2.A polar bear starts at the North pole. It travels 1.0 km South, wherefore 1.0 km East, accordingly 1.0 km North to return to its beginning point. This trip takes 30 min. What was the bears average stimulate?
a.0 km/h
b.0.10 km/h
c.3.0 km/h
d.6.0 km/h
3.A motorist travels clx km at 80 km/h and clx km at 100 km/h. What is the average hie of the motorist for this trip?
a.84 km/h
b.89 km/h
c.90 km/h
d.91 km/h
4.An airplane travels at 300 mi/h south for 2.00 h and and then at 250 mi/h north for 750 miles. What is the average speed for the trip?
a.260 mi/h
b.270 mi/h
c.275 mi/h
d.280 mi/h
5.A new car manufacturer advertises that their car can go from zero to sixty in 8 s. This is a description of
a.average speed.
b.instantaneous speed.
c.average acceleration.
d.instantaneous acceleration.
6. crowd out an objects velocity change direction when its acceleration is constant?
a.No, this is not possible because it is eer speeding up.
b.No, this is not possible because it is always speeding up or always slowing down, but it can never turn around.
c.Yes, this is possible, and a rock thrown and twisted straight up is an example.
d.
Yes, this is possible, and a car that starts from rest, speeds up, slows to a stop, and then backs up is an example.
7.A cart starts from rest and accele set outs at 4.0 m/s2 for 5.0 s, then maintain that velocity for 10 s, and then decelerates at the rate of 2.0 m/s2 for 4.0 s. What is the final speed of the car?
a.20 m/s
b.16 m/s
c.12 m/s
d.10 m/s
8.The metric prefix for one thousand is
a.milli
b.centi
c.kilo
d.mega
9. 50 milligrams is
a.0.000050 g
b.0.00050 g
c.0.050 g
d.50000 g
10.An average human has a heart rate of 70 beats per minute. If someones heart beats at that average rate over a 70-yr...If you want to get a rich essay, order it on our website: Orderessay
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