turn left stop immediately slow down and eventually stop
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(A) turn left
B stop immediately
slow down and eventually stop
D move with constant velocity
E) turn right"
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- A driver is traveling 18.4 m/s when she sees a red light ahead. Her car is capable of decelerating at a rate of 3.55 m/s²If the earth revolves around the sun at a constant distance of 1.50 x 1011 m, what is the centripetal acceleration of the sun if one earth year is 365 days? a. 4.0 x 10-3 m/s2 b. 3.0 x 10-3 m/s2 c. 6.0 x 10-3 m/s2 d. 5.0 x 10-3 m/s2 e. 2.0 x 10-3 m/s2Asking for help on 9, 10, and 11 if possible ?
- 1. Draw a qualitative motion diagram (including both velocity and acceleration vectors) for the following objects in the following situations: Be sure to show the vector subtraction that supports how you got your acceleration vectors. a) Viewed from above, a car traveling around a traffic circle having radius R at constant speed. b) A person in a perfectly circular roller coaster loop-de loop having radius R. (Note: higher speed at the bottom of the loop than the top)What is the direction of the acceleration vector for each of these situations? Remember that if an object speeds up, then the velocity and acceleration vectors are in the same direction; if an object slows down, then they are in opposite directions. Any object that is traveling in a vertical direction also experiences acceleration due to gravity. a. {up/ down/ right/ left} Object travels to left and slows down. b. {up/ down/ right/ left} Object is tossed upward.10. A car drives to the north at constant speed. Which direction does its acceleration point? Explain.
- Lisa runs 1.5 km along a straight path and then turns and runs 2.4 km in the opposite direction. She then turns back and runs 700 m in the original direction. Let Lisa’s original direction be the positive direction. What are the displacement and distance, in km, she ran? * A. Displacement is 4.6 km, and distance is -0.2 km. B. Displacement is -0.2 km, and distance is 4.6 km. C. Displacement is 4.6 km, and distance is +0.2 km. D. Displacement is +0.2 km, and distance is 4.6 km.What is Rudy's acceleration just after he passes point BFor the following cases, determine if it is possible for an object and explain answer. 2. a. Constant, non-zero velocity AND speed that is not constant b. Constant, non zero speed AND velocity that is NOT constant c. Constant, non zero speed AND non zero acceleration
- 35 2bYou are driving at night on a straight path at 70MPH. Suddenly, a dog appears in your headlights 35 meters away. You immediatley apply the brakes which causes your car to slow down at a constant rate, coming to rest just before making contact with the dog. 1 mile = 1.61 km 1) How long did it take for your car to make a complete stop? 2) If you were initially driving in the 'positive x' direction, then what was your acceleration during the braking maneuver, in vector form and in m/s2?A racing car is moving around the circular track of radius 500 meters shown above. At the instant when the car's velocity is directed due east, its acceleration is directed due north and has a magnitude of 2 meters per second squared. When viewed from above, the car is moving A. clockwise at 32 m/s B. counterclockwise at 16 m/s C. counterclockwise at 32 m/s D. clockwise at 16 m/s