If an object starts with a velocity of 5.26(m)/(s) and ends with a velocity of 60.7(m)/(s) in 15,0 seconds, what is its displacement?
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- A truck travels due east for a distance of 1.2 km, turns around and goes due west for 7.2 km, and finally turns around again and travels 2.6 km due east.(a) What is the total distance (in km) that the truck travels? (Enter a number.)______km(b) What are the magnitude (in km) and direction of the truck's displacement? (Enter a number.)magnitude_______kmdirection (a)east (b)west (c)neitherA toy car moves along a flat table, and a meter stick is used to mark its position at different times. If the car starts at a location of xi = 5.00 cm and moves to a location of xf = 15.0 cm then what is the displacement of the car in centimeters?A girl delivering newspapers covers her route by traveling 3.00blocks west, 4.00 blocks north, then 6.00 blocks east. How fardid she move from her original position?
- A car is traveling east at 17.5 m/s when it turns due north and accelerates to 32.5 m/s, all during a time of 5.00 s. Calculate the magnitude of the car's average acceleration (in m/s2).During 5 successive 1.07 min intervals, a runner moves at the following constant speeds: 0.396 km/min, 0.248 km/min, 0.160 km/min, 0.160 km/min, and 0.320 km/min Compute the total distance traveled and the average speed.A girl delivering newspapers covers her route by traveling 10.00 blocks west, 4.00 blocks north, and then 4.00 blocks east. (a) What is her resultant displacement? blocks(b) What is the total distance she travels? blocks
- Suppose you drop a rock into a dark well and, using precision equipment, you measure the time for the sound of a splash to return. (a) Neglecting the time required for sound to travel up the well, calculate the distance (in m) to the water if the sound returns in 2.1500 s. m (b) Now calculate the distance (in m) taking into account the time for sound to travel up the well. The speed of sound is 338.30 m/s in this well. mThe speed of propagation of the action potential (an electric signal) in a nerve cell depends (inversely) on the diameter of the axon(nerve fiber). If the nerve cell connecting the spinal cord to your feet is 0.9 m long and the nerve impulse is 16 m/s. How long (in s) does it take for the nerve signal to travel this distance ?A girl delivering newspapers covers her route by traveling 5.00 blocks west, 4.00 blocks north, and then 4.00 blocks east. (a) What is her resultant displacement? Your response differs from the correct answer by more than 10%. Double check your calculations. blocks
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