Is time a vector quantity? Explain your reasoning in 10 sentences
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A: Here we will understand what total time is .
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Q: stone is dropped from the edge of a roof, and hits the ground with a velocity of -175 feet per…
A: GivenFinal velocity of stone hits the ground ,v=-175 ft/s2Acceleration due to gravity, g=32 ft/s2
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Is time a vector quantity? Explain your reasoning in 10 sentences
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- A truck slows down from 11.8m/s to 8.4m/s. During this time, the truck covered a distance of 543m.How long (in seconds) did it take for its speed to decrease from 11.8m/s to 8.4m/s? Do NOT include units in your answer. Round your answer to 2 decimal places. Do NOT change to scientific notation. Ignore significant figures. MA truck slows down from 13m/s to 8.5m/s. During this time, the truck covered a distance of 892m. How long (in seconds) did it take for its speed to decrease from 13m/s to 8.5m/s? Do NOT include units in your answer. Round your answer to 2 decimal places. Do NOT change to scientific notation. Ignore significant figures.Kinetic energy can be found using the formula Ek=12mv2Ek=12mv2. The variable EkEk represents kinetic energy, the variable mm is the mass in pounds (lbs.), and the variable vv is the velocity in feet per second (ftsfts). What is a possible unit of measure for kinetic energy and why?
- If you look at the dimensions (units) of the right side of equation 2, what units will the calculated acceleration have? Does this what you expected for an acceleration value? ExplainYou measure the acceleration of a METRA train to be a = 0.58 m/s/s. If you are standing at the front car when the train pulls away, how fast is the train moving after 3 cars pass you? Give your answer in miles per hour (to the nearest whole number). NOTES: Each METRA car is 25.9 meters in length. 1 m/s = 2.24 miles per hourIf John starts from home and walks East 6 miles, then South 8 miles and then walks directly 10 miles back home, what is John’s final displacement and distance walked?
- The motion of a cart can be represented by x(t)=(-2.5m/s)t-10.0m. At what time does this cart cross the origin? a)it crosses the origin t=4s after we start observing it b)It crosses the origin t=0s after we start observing it c)If it were moving the same way before we started observing it then it crossed the origin 4 seconds before we started counting.Y=1/2gt^2 is similar to equation Y= at^2 + bt + c X is time a = 1/2g b=0 c=0 Solve for g Can you show me step by step how g= 2xa Please write bigger the last question i couldn't decipher all of the writing - thank you so much I don't understand how g=2xaThe formula v= square root 2gh gives the velocity v, in feet per second, of an object after it falls h feet accelerated by gravity g, in feet per second squared. If g is approximately 32 feet per second squared, find how far an object has fallen if its velocity is 168 feet per second.
- Page 3 of 8 4. Lin went ice-skating and tracked his distance using a motion detector. Calculate the rate of change by analyzing the differences in the y-values and the differences in the x-values in the table. Calculate the rate of change again using the graph of Lin's skate. Explain why your answers make sense. Skater's Distance from Motion D5) Calculate the angle you would need to travel to get from Chicago to Dallas. Explain how this angle is measured using the cardinal directions (North, South, East, and West).In the previous chapter we defined acceleration to be the time rate of change of velocity; that is, a = (change in v) / (change in time). Are we now saying that acceleration is instead the ratio of (net) force to mass, that is , a = F/ m? Which is it? How is the first acceleration formula compared to the second formula? Elaborate your answer. %3!