Physics, 12.11.2019 23:31 anthonybowie99

When the race started, juan’s speed increased until he was running at a constant speed of 6 m/s. after 17 seconds, juan’s velocity changed to 5 m/s to the northwest and remained constant for 20 seconds. finally, juan’s velocity changed to 7m/s north, and he crossed the finish line. juan then walked back to the starting line at a slow constant speed of 1 m/s.

6.what are examples of speed from the description of juan's race?

7.what are examples of velocity from the description of juan's race?

8.what are examples of acceleration from the description of juan's race?
!

Answers: 2

Show answers

Another question on Physics

Physics, 22.06.2019 02:00

The motor m applies a time-varying force of f (200 t) n, where t is in seconds. box b with mass 200 kg starts from rest, and the coefficients of kinetic and static friction are 0.2 and us 0.3 the acceleration due to gravity is g 9.8 m/s2 b 300 a) find the time ' when the box starts to move. b) calculate the speed of the crate at 3 s c) calculate the power delivered by the motor at t 3 s

Answers: 3

Answer

Physics, 22.06.2019 06:00

Suppose water is leaking from a tank through a circular hole of area ah at its bottom. when water leaks through a hole, friction and contraction of the stream near the hole reduce the volume of water leaving the tank per second to cah 2gh , where c (0 < c < 1) is an empirical constant. a tank in the form of a right-circular cone standing on end, vertex down, is leaking water through a circular hole in its bottom. (assume the removed apex of the cone is of negligible height and volume.) (a) suppose the tank is 20 feet high and has radius 8 feet and the circular hole has radius 2 inches. the differential equation governing the height h in feet of water leaking from a tank after t seconds is dh dt = − 5 6h3/2 . if the height of the water is initially 8 feet, how long will it take the tank to empty? (round your answer to two decimal places.)

Answers: 2

Answer

Physics, 22.06.2019 11:30

4. a 75.0 g piece of ag metal is heated to and dropped into 50.0 g of water at the final temperature of the mixture is what is the specific heat capacity of silver? 5. a 465 g chunk of iron is removed from petrucci, ralph h.. general chemistry (p. 290). pearson education. kindle edition.

Answers: 3

Answer

Physics, 22.06.2019 16:30

3. a lunar exploration vehicle was created by a research team. it weighs 3,000 kg on the earth. it needs an acceleration of 10 m/s2 on the moon. in order to have the same acceleration, what will be the net force acting on the vehicle on the earth?

Answers: 2

Answer

You know the right answer?

When the race started, juan’s speed increased until he was running at a constant speed of 6 m/s. aft...

Questions