A barge on a still lake is moving toward a bridge at 10.0 m/s. When the...
A barge on a still lake is moving toward a bridge at 10.0 m/s. When the bridge is 41.0 m away, the pilot slows the boat with a constant acceleration of ?0.88 m/s2.
Use x = x0 + v0t + 1/2 at^2 to find the time it takes the barge to reach the bridge. Note that you will obtain two answers!
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A barge on a still lake is moving toward a bridge at 10.0 m/s.
When the...
9, + 0.5 points SerPSET92.P.026. My Notes Ask Your Te A speedboat moving at 28.0 m/s...
9, + 0.5 points SerPSET92.P.026. My Notes Ask Your Te A speedboat moving at 28.0 m/s approaches a no-wake buoy marker 100 m ahead. The plot slows the boat with a constant acceleration of -3.8 m/s2 by reducing the throttle. (a) How long does it take the boat to reach the buoy? (b) What is the velocity of the boat when it reaches the buoy? m/s Submit Answer Save Progress Pacice AnothorVersion 10.-'0.5 points SeiPSE9 2 P028 WI My Notes...
A rock A moving with horizontal speed of 10.0 m/s hits rock B which was at...
A rock A moving with horizontal speed of 10.0 m/s hits rock B which was at rest, and which has 2 times less mass then A. After the collision, the rocks scatter off, so that A goes 20 degrees above the horizontal, whereas B goes 35 degrees above the horizontal. Find the speeds vfA and vfB that the rocks have just after the collision. Ignore friction, or any other external forces acting in the horizontal plane! Note: In the end,...
A probe has been launched vertically from the surface of Mars. At time t 0, it has reached a height of y1,0 320 m, and is moving upward at vy10 80 m/s when its engines cut out. At the same moment...
A probe has been launched vertically from the surface of Mars. At time t 0, it has reached a height of y1,0 320 m, and is moving upward at vy10 80 m/s when its engines cut out. At the same moment, the mother ship is y20 1500 m from the Martian surface, moving down directly toward the probe at 25 m/s and slowing down at the rate of 0.80 m/s2. On the surface of Mars, the gravitational acceleration is gMars-3.72...
At a height h = 44.0 m above the ground a rocket is fired at an...
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.Please form info discussion groups of 3 (no more than 3) to solve the following questions....
.Please form info discussion groups of 3 (no more than 3) to solve the following questions. Use the boards in the classroom to discuss the details of your solutions and show of work. Markers and erasers will be provided. Please return them after end of the class. Groups will be called to solve the questions for the rest of the class (bonus points opportunity) The final answers to each question is provided in the parenthesis. You need to arrive at...
2. Suppose a car travels 108 km at a speed of 20.0 m/s, and uses 2.20...
2. Suppose a car travels 108 km at a speed of 20.0 m/s, and uses
2.20 gallons of gasoline. Only 30% of the gasoline goes into useful
work by the force that keeps the car moving at constant speed
despite friction. (The energy content of gasoline is 1.3 ✕
108 J per gallon.)
(a) What is the force exerted to keep the car moving at constant
speed?
N
(b) If the required force is directly proportional to speed, how
many...
(1) An object moves with constant acceleration 3.26 m/s and over a time interval reaches a...
(1) An object moves with constant acceleration 3.26 m/s and over a time interval reaches a final velocity of 10.8 m/s. a. If its initial velocity 5.39 m/s, what is its displacement during the time interval? Submit Answer Tries 0/10 b. What is the distance it travels during this interval? Submit Answer Tries 0/10 c. If its initial velocity is -5.39 m/s, what is its displacement during the time interval? Submit Answer Tries 0/10 d. What is the total distance...
6. An astronaut ona distant planet wants to determine its acceleration due to gravity. The astronaut...
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9, + 0.5 points SerPSET92.P.026. My Notes Ask Your Te A speedboat moving at 28.0 m/s approaches a no-wake buoy marker 100 m ahead. The plot slows the boat with a constant acceleration of -3.8 m/s2 by reducing the throttle. (a) How long does it take the boat to reach the buoy? (b) What is the velocity of the boat when it reaches the buoy? m/s Submit Answer Save Progress Pacice AnothorVersion 10.-'0.5 points SeiPSE9 2 P028 WI My Notes...
A probe has been launched vertically from the surface of Mars. At time t 0, it has reached a height of y1,0 320 m, and is moving upward at vy10 80 m/s when its engines cut out. At the same moment, the mother ship is y20 1500 m from the Martian surface, moving down directly toward the probe at 25 m/s and slowing down at the rate of 0.80 m/s2. On the surface of Mars, the gravitational acceleration is gMars-3.72...
.Please form info discussion groups of 3 (no more than 3) to solve the following questions. Use the boards in the classroom to discuss the details of your solutions and show of work. Markers and erasers will be provided. Please return them after end of the class. Groups will be called to solve the questions for the rest of the class (bonus points opportunity) The final answers to each question is provided in the parenthesis. You need to arrive at...
2. Suppose a car travels 108 km at a speed of 20.0 m/s, and uses
2.20 gallons of gasoline. Only 30% of the gasoline goes into useful
work by the force that keeps the car moving at constant speed
despite friction. (The energy content of gasoline is 1.3 ✕
108 J per gallon.)
(a) What is the force exerted to keep the car moving at constant
speed?
N
(b) If the required force is directly proportional to speed, how
many...
(1) An object moves with constant acceleration 3.26 m/s and over a time interval reaches a final velocity of 10.8 m/s. a. If its initial velocity 5.39 m/s, what is its displacement during the time interval? Submit Answer Tries 0/10 b. What is the distance it travels during this interval? Submit Answer Tries 0/10 c. If its initial velocity is -5.39 m/s, what is its displacement during the time interval? Submit Answer Tries 0/10 d. What is the total distance...
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