Recent content by mcryder16

Homework Statement The sled dog drags sleds A and B across the snow. The coefficient of friction between the sleds and the snow is 0.1. If the tension in the rope 1 is 142 N, what is the tension in rope 2? (M=112 kg, m=60 kg.) Homework Equations Any ideas of how to start this problem...

Homework Statement Two packages at UPS start sliding down the 18° ramp. Package A has a mass of 5.26 kg and a coefficient of friction of 0.22. Package B has a mass of 11.67 kg and a coefficient of friction of 0.15. How long does it take package A to reach the bottom? (s=2.1 m) Homework...

Homework Statement The 120.8 kg block in FIGURE takes 5.87 s to reach the floor after being released from rest. What is the mass of the block on the left? (h=1.05 m.) Homework Equations Any ideas of how to do this problem? The Attempt at a Solution

Homework Statement A car starts from rest at a stop sign. It accelerates at 5.02 m/s2 for 7.24 seconds, coasts for 2.22 s, and then slows down at a rate of 4.51 m/s2 for the next stop sign. How far apart are the stop signs? Homework Equations Im not sure how to start this problem...

Homework Statement A skier is gliding along at 3.12 m/s on horizontal, frictionless snow. He suddenly starts down a 16° incline. His speed at the bottom is 17.89 m/s. What is the length of the incline? Homework Equations Not sure how to start this and formula to be used. The...

Homework Statement A student standing on the ground throws a ball straight up. The ball leaves the student's hand with a speed of 15.44 m/s when the hand is 1.61 m above the ground. How long is the ball in the air before it hits the ground? (The student moves her hand out of the way.)...

Homework Statement A toy train is pushed forward and released at x0=1.42 m with a speed of 1.86 m/s. It rolls at a steady speed for 2.04 s, then one wheel begins to stick. The train comes to a stop 5.06 m from the point at which it was released. What is the magnitude of the train’s...

Homework Statement A car accelerates at 1.65 m/s2 along a straight road. It passes two marks that are 30 m apart at times 2.4 s and 4.8 s. What was the car's initial velocity? Homework Equations Need help starting this problem? The Attempt at a Solution

Homework Statement Heather and Jerry are standing on a bridge 46 m above a river. Heather throws a rock straight down with a speed of 30 m/s. Jerry, at exactly the same instant of time, throws a rock straight up with the same speed. Ignore air resistance. How much time elapses between the...

Homework Statement A car traveling at 25.43 m/s runs out of gas while traveling up a 17° slope. How far up the hill will it coast before starting to roll back down? Homework Equations Not sure on the equation to be used? The Attempt at a Solution