question archive A car traveling with constant speed travels 150 km in 7200 s
A car traveling with constant speed travels 150 km in 7200 s
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A car traveling with constant speed travels 150 km in 7200 s. What is the speed of the car? Express the speed with the appropriate units.
Templates menu. Torque can be calculated by multiplying the force (N) applied at 90° to the lever arm at a distance (m) from the pivot point (point of rotation), the compound SI unit for the torque is N m. If the force (at 90 to the lever arm) applied is 15 N and it is applied at 2.0 m from the pivot point (point of rotation), what is the torque on the lever? Express the torque with the appropriate units.
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1)
distance = 150 km = 150000 m
time = 7200 s
use:
speed = distance / time
= 150000 m / 7200 s
= 20.8 m/s
Answer: 20.8 m/s
2)
Torque = Force * distance
= 15 N * 2.0 m
= 30. N.m
Answer: 30 N.m
