subject
Physics, 25.06.2019 10:00 Pookiev

Two frictionless inclines that begin at ground level (h = 0 m) and slope upward at the same angle θ. one track is longer than the other, however. identical blocks are projected up each track with the same initial speed v0. on the longer track the block slides upward until it reaches a maximum height h above the ground. on the shorter track the block slides upward, flies off the end of the track at a height h1 above the ground, and then follows the familiar parabolic trajectory of projectile motion. at the highest point of this trajectory, the block is a height h2 above the end of the track. the initial total mechanical energy of each block is the same and is all kinetic energy. the initial speed of each block is v0 = 7.00 m/s, and each incline slopes upward at an angle of θ = 50.0°. the block on the shorter track leaves the track at a height of h1 = 1.25 m above the ground. find (a) the height h for the block on the longer track and (b) the total height h1 + h2 for the block on the shorter track.

ansver
Answers: 1

Another question on Physics

question
Physics, 21.06.2019 18:10
An insurance company wants to know if the average speed at which men drive cars is higher than that of women drivers. the company took a random sample of 27 cars driven by men on a highway and found the mean speed to be 72 miles per hour with a standard deviation of 2.2 miles per hour. another sample of 18 cars driven by women on the same highway gave a mean speed of 68 miles per hour with a standard deviation of 2.5 miles per hour. assume that the speeds at which all men and all women drive cars on this highway are both approximately normally distributed with unknown and unequal population standard deviations.
Answers: 2
question
Physics, 22.06.2019 05:00
Which statements describe the movement of ocean currents around the globe? check all that apply. strong winds force warm water to sink to the ocean floor. the coriolis effect causes warm and cold water to mix. cool dense water sinks to the ocean floor. warm water replaces cool surface water. wind blowing parallel to the shore causes upwelling of cool water.
Answers: 1
question
Physics, 22.06.2019 15:10
Where do magnetic lines of force enter earth?
Answers: 3
question
Physics, 22.06.2019 16:40
The force needed to overcome static friction is usually less than that needed to overcome kinetic friction.true or false?
Answers: 1
You know the right answer?
Two frictionless inclines that begin at ground level (h = 0 m) and slope upward at the same angle θ....
Questions
question
Mathematics, 22.05.2021 03:10
question
Mathematics, 22.05.2021 03:10
question
Mathematics, 22.05.2021 03:10
question
Mathematics, 22.05.2021 03:10
Questions on the website: 13722367