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1. In an extreme test of its braking system under ideal road conditions, a Toyota Celica, travelling initially at 26.9 m/s [S], comes to a stop in 2.61 s. The mass of the car with the driver is 1.18 x 105 kg. Calculate the net force required to cause that acceleration. (4 marks) 2. A 2.0 kg mass placed on a smooth, frictionless table. The mass is attached by a light string passing over the edge of the table with a frictionless pulley. 2.0kg 5.0kg Determine the magnitude of the acceleration of the 2.0 kg mass and the tension in the string. (5 marks)3. A 25.0 kg block is on an incline. A 50.0 N force is applied on the block directly up the 30 incline (ignore friction). This force is less than the parallel component of the gravitational force and the block slides down the ramp. Determine the block's acceleration and the distance it travels in 3.0s. (5 marks) 4. According to Newton's laws of motion, when objects are in equilibrium the force vectors add to zero. The diagram to the right shows a 10.0 kg sign suspended by a wire and a lightweight horizontal solid beam, which is perpendicular to the wall. The beam is attached to the wall with a hinge. 30 T 60 FB Physics F Determine both T and FB. Keep in mind that these are both vectors. (6 marks)5. At Sea World, a 900 kg polar bear slides down from rest along a wet slide inclined at an angle of 250 to the horizontal. The coefficient of friction between the bear and the slide is 0.05. Draw a force diagram on the picture showing the forces present on the polar bear. What is the bear's acceleration down the slide? (6 marks) 6. Two boxes with different masses are placed onto a table, mass A = 6.0 kg and mass B = 9.0 kg. The boxes are pushed and they accelerate at a rate of 1.4 m/s2 [right]. The force of friction on box B is 22 N. What is the force of box B onto box A? (4 marks) 6.0 kg 9.0 kg