a 70 kg box is pulled by a rope that exerts a 400 N force at angle of 30 degrees to the horizontal the leading coefficient of kinetic friction id 0.50. draw a diagram. draw a free body diagram . find the acceleration of the box.
A freight train has a mass of 1.5 x 10^7 kg . If the locomotive can exert a constant pull of 7.5 X 10^5 N, how long does it take to increase the speed of the train from rest to 80 km /h?
why does islam have more oil problems than saudi arabia
Gary and Linda are at the movies. Gary has $9 to spend on snacks and Linda has $10 to spend on snacks. Gary buys nachos. Linda does not buy any snacks at the movies. If linda has $4.55 more than gary after he buys nachos, how much did gary pay for the nachos?
Identify the different types of statistics, graphs, and illustrations that are appropriate for NCLB
sofa wont fit through the door so i lift the 86.1 kg sofa 17.2 m from the street. how much time will the lift take?
a 65 kg male skater pushes a 45 kg female skater causing her to accelerate at a rate of 2.0 ms ^2 at what rate will the male skater accelerate? What is the rate of his acceleration?