A hoop is rolling without slipping along a horizontal surface with a speed of 4.50 m/s when it starts up a ramp that makes an angle of 25.0° with the horizontal. What is the speed of the hoop after it has rolled 3.00 m up the ramp?
A)
2.80 m/s
B)
1.91 m/s
C)
2.06 m/s
D)
3.79 m/s
E)
8.02 m/s
A
You might also like to view...
Banked Curves: What is the proper banking angle for an Olympic bobsled to negotiate a 100-m radius turn at 35 m/s without skidding?
A. 31° B. 41° C. 51° D. 61°
Resistance and Resistivity: If a quantity you calculated has units of 
what is that quantity?
A. potential B. resistivity C. resistance D. capacitance E. current
Which landform is a flat, raised area of land?
a) interior plain b) plateau c) coastal plain d) mountain
Why do the patterns of the stars in our sky look the same from year to year?
A) because the stars in the constellations move so slowly-typically about the speed of a snail-that their motions are not noticeable B) because the stars in the constellations are so far away C) because the stars in the constellations are not moving D) because the stars in the constellations all move at the same speeds and in the same directions, so they don't change their relative positions