A rope attached to a truck pulls a 180−kg motorcycle at 9.0m/s. The rope exerts a 400−N force on the motorcycle at an angle of 15∘ above the horizontal. How will your anwer change if the speed is 12m/s? c. How will your answer change if the truck accelerates?

The brightest star in the night sky in the northern hemisphere is sirius. its distance from earth is estimated to be 8.7 light years. a light year is the distance light travels in one year. light travels at a speed of 3.00 × 108 m/s. calculate the distance from earth to sirius in miles. (1 mi = 5280 ft) g