11.Jasmine is sledding down a hill. Her total mass (including the sled) is61.8kg. When she reaches the bottom of the hill, and the ground becomes level, she is moving at5.90m/s. The coefficient of friction between the sled and the ground is0.151. How fast will Jasmine be moving3.30seconds after reaching the bottom of the slope? 0.91m/s 4.33m/s 1.01m/s 2.38m/s12.A21,000kg semi truck is traveling down the highway at a constant velocity of29m/s. The engine is producing16,000N of force. What is the force of air resistance acting on the semi truck? 552N in the same direction of the truck 724N in the opposite direction of the jet 21,000N in the same direction as the truck 16,000N in the opposite direction as the truck13.[M4Pre_FBD2] The free body diagram above shows the forces acting on a7.22kg object. What is the acceleration vector that results from these forces? 7.65m/s2,9.45onorth of west 5.92m/s2,23.3owest of north 7.73m/s2,16.6onorth of west 6.88m/s2,26.6osouth of west14.A1.10kg tee-shirt is fired from a35kg tee-shirt cannon with a force of65N to the north. What is the force acting on the cannon? 59N to the north 59N to the south 65N to the south 65N to the north15.If you are standing on the floor, and Earth's gravity is pulling you downward with a force of726N, what is the upward force that you are exerting on the Earth? 9.81N 363N 0N 726N16.A1.10kg tee-shirt is fired from a35kg tee-shirt cannon with a force of125N to the north. What is the acceleration of the tee-shirt? 65m/s2to the north 65m/s2to the south 59m/s2to the north 59m/s2to the south17.Sondra slides a0.65kg rock across a sheet of ice. The coefficient of kinetic friction between the rock and the ice is0.11. What is the stone's rate of acceleration as it slides across the ice? 1.08m/s2 2.24m/s2 0.664m/s2 1.31 m/s18.Nelson is moving, and has a box filled with some of his belongings. The box has a mass of35kg, and the coefficient of friction between the box and the ground is0.21. When the box is sliding, what is the magnitude of the force of friction? 72N 7.4N 35N 61N19.Carina is using a rope to pull her canoe out of the water. The canoe has a mass of24.4kg. If she pulls the canoe with a force of55.0N, what will be the boat's rate of acceleration? 0.444m/s2 1.61m/s2 3.09m/s2 2.25m/s20.Paula and her brother are moving bales of hay. At one point, the forces acting on a certain bale are the following: a gravitational force of535N downward, a normal force of535N upward, Paula's pulling force of110N northward, her brother's pulling force of90N northward, and a friction force of200N southward. Which of the following statements is accurate? There is a net force of200N acting on the bale. There is a net force of400N acting on the bale. There is a net force of1470N acting on the bale. There is no net force acting on the bale.21.Renee is pulling her little sister through the snow on a sled. The sled has a total mass of 41.1 kg. In order to maintain a constant velocity, Renee must pull with a force of 35.5 N. What is the coefficient of kinetic friction between the sled and the snow. k=0.02 k=0.12 k=0.64 0.0922.At a certain point during an airplane flight, a25kg object has an apparent weight of220N. Is this object in equilibrium? Why or why not?23.A1.10kg tee-shirt is fired from a35kg tee-shirt cannon with a force of125N to the north. What is the acceleration of the cannon? 3.6m/s2to the south 3.6m/s2to the north 32m/s2to the south 32m/s2to the north24.On the surface of the Moon, the acceleration of gravity is1.62m/s2. The lunar module that landed there had a mass of15,200kg. What is the weight of this rover on the surface of the Moon? 15,200N 24,600N 36,600N 149,000N25.Tatiana is pushing a loaded shopping cart. Ash she is pushing, the speed and direction of the cart are both constant. Which of the following statements accurately describes this situation? There are no forces acting on the cart at all. There is no net force acting on the cart. The forces acting on the cart are imbalanced. The cart has no inertia.26.Jody places a1.04kg block on an inclined plane. The plane is at an angle of19 above the horizontal. If the block sits motionless on the plane, what is the force of friction acting on the block? 2.5N 1.7N 1.3N 3.3N27.Cody has built a model rocket, and launched it into the air. At one point, the model rocket's engine produces39N of force upwards, and the force of gravity on the rocket is39N downwards. If no other forces are acting on the rocket, which statement describes the rocket's motion at this point? The rocket's speed is decreasing. The rocket is not changing speed or direction. The rocket's speed is increasing. The rocket is moving at constant speed, but changing direction.28.In casual conversation, you may hear the words "mass" and "weight" used interchangeably, but they are distinct concepts. Explain the distinction between mass and weight29.Examine the free body diagram shown above. What is the net force on the object depicted in this diagram? 57.5N,44.1oabove the negativex-axis 330N,11.4obelow the negativex-axis 65.4N,38.9oabove the positivex-axis 88.0N,21.1oabove the negativex-axis30.A certain car has a mass of1730kg. The coefficient of kinetic friction between the car's tires and the road is0.78. If the car was to skid to a stop, what would the force of friction be while the car was sliding? Ff=15,500N Ff=1730N Ff=13,200N Ff=17,000N30.A certain car has a mass of1730kg. The coefficient of kinetic friction between the car's tires and the road is0.78. If the car was to skid to a stop, what would the force of friction be while the car was sliding? Ff=15,500N Ff=1730N Ff=13,200N Ff=17,000N

110 N 80 N X 30 140 N