Problem 3:   A brick of mass m = 0.28 kg is set against a spring with a spring constant of k1 = 627 N/m which has been compressed by a distance of 0.1 m. Some distance in front of it, along a frictionless surface, is another spring with a spring constant of k2 = 103 N/m. The brick is not connected to the first spring and may slide freely.  Part (a)  How far d2, in meters, will the second spring compress when the brick runs into it?  Part (c)  Now assume friction is present on the surface in between the ends of the springs at their equilibrium lengths, and the coefficient of kinetic friction is μk = 0.5. If the distance between the springs is x = 1 m, how far d2, in meters, will the second spring now compress?

1 2 B → ✰ S 1 4 https://mapleton.instructure.com/courses/16703/assignments/300550 1 point A 1kg flower is pushed by a force of 1N. How fast (in m/s2)does it accelerate? Type your answer... A Submit For these questions, assume that the acceleration due to gravity (g) on Earth is 10 m/s². Also assume that there is no friction or air resistance acting on any of these systems. E 1 point A 23kg statue sits on a table. What is the statue's weight in Newtons? Type your answer... 2 1 point A speeding car is pulled over by a police cruiser. If the car started at 60 m/s and stopped in 20 seconds. If the car has a mass of 1,800Kg, how much force (in Newtons) was exerted by the car's breaks? Type your answer... 3 1 point A moose pushes a 10kg rock, accelerating it from rest to 10m/s in 1 second (This is an acceleration of 10m/s2). What was the applied force in Newtons? Type your answer... Return 4

A cord connected at one end to a block which can slide on an inclined plane has its other end wrapped around a cylinder resting in a depression at the top of the plane as shown in.Determine the speed of the block after it has traveled 1.60 mm along the plane, starting from rest. Assume the coefficient of friction between all surfaces is μμmu = 0.0320. Since the block is much lighter than the cylinder, ignore tension in the string when calculating the normal force on the cylinder. Do not ignore tension in the string when calculating the net torque (including friction) on the cylinder.

A 100 kg skier starts from rest at the top of a ski slope that is 50 m long. If his final speed at the bottom of the slope is 10 m/s, where the bottom of the slope is 20 m below the top, what is the approximate average force of friction between the skis and the slope? 20 m 50 m O 300 N O 1500 N ○ 600 N ○ 750 N O 150 N