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A tire on a car has a radius of .9 m and rotates at an angular speed of 60 rad/s. How fast is the car traveling?
tangent to its circular path
increases
-10 m/s2
54 m/s
It rolls to the front of the cabin.
250 cm
an inward force.
200 N and 44 lbs.
There are ________ centimeters in 2.5 meters?
tangent to its circular path
increases
-10 m/s2
54 m/s
It rolls to the front of the cabin.
250 cm
an inward force.
200 N and 44 lbs.
A ball is left in the cabin of an airplane. When the plane accelerates forward, the ball rolls to the back of the cabin. What happens when the plane stops?
tangent to its circular path
increases
-10 m/s2
54 m/s
It rolls to the front of the cabin.
250 cm
an inward force.
200 N and 44 lbs.
What is a centripetal force?
tangent to its circular path
increases
-10 m/s2
54 m/s
It rolls to the front of the cabin.
250 cm
an inward force.
200 N and 44 lbs.
As the rotational speed of an object increases its linear speed
tangent to its circular path
increases
-10 m/s2
54 m/s
It rolls to the front of the cabin.
250 cm
an inward force.
200 N and 44 lbs.
If a person has a mass of 20 kg, what is there weight in Newtons and pounds on Earth? (g= 10 m/s2 and 1 kg = 2.2 lbs.)
tangent to its circular path
increases
-10 m/s2
54 m/s
It rolls to the front of the cabin.
250 cm
an inward force.
200 N and 44 lbs.
If you whirl a tin can on the end of a string and the string suddenly breaks the can will fly____________.
tangent to its circular path
increases
-10 m/s2
54 m/s
It rolls to the front of the cabin.
250 cm
an inward force.
200 N and 44 lbs.
A race car traveling at 50 m/s applies its brakes and comes to a complete stop in 5.0 seconds. what is the car’s acceleration?
tangent to its circular path
increases
-10 m/s2
54 m/s
It rolls to the front of the cabin.
250 cm
an inward force.
200 N and 44 lbs.
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