B1. A snowboarder rides over a jump (see the sketch below), where the launch ramp is at an angle of 30° above the horizontal. The take-off point is 2 m above the base of the launch ramp and the horizontal distance between the base of the launch ramp and the top of the landing slope is 8m. The landing slope is at an angle of 45° below the horizontal. 1. How fast should the snowboarder be going at the take-off point in order to clear the jump (i.e. to land at the top of the landing slope)? 2. Assuming that the snowboarder starts from rest and that all of their initial gravita- tional potential energy is converted into kinetic energy, what vertical height above the take-off point should they start from so that their take-off speed is 30 km/hr? 3. If the snowboarder has speed 30 km/hr at the take-off point, what is their maximum height above the base of the launch ramp and how long are they in the air for before they land on the landing slope? Take-off point Launch ramp. 30 2m 8 m 45° Landing slope

B1. A snowboarder rides over a jump (see the sketch below), where the launch ramp is at an angle of 30° above the horizontal. The take-off point is 2 m above the base of the launch ramp and the horizontal distance between the base of the launch ramp and the top of the landing slope is 8m. The landing slope is at an angle of 45° below the horizontal. 1. How fast should the snowboarder be going at the take-off point in order to clear the jump (i.e. to land at the top of the landing slope)? 2. Assuming that the snowboarder starts from rest and that all of their initial gravita- tional potential energy is converted into kinetic energy, what vertical height above the take-off point should they start from so that their take-off speed is 30 km/hr? 3. If the snowboarder has speed 30 km/hr at the take-off point, what is their maximum height above the base of the launch ramp and how long are they in the air for before they land on the landing slope? Take-off point Launch ramp. 30 2m 8 m 45° Landing slope

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Concept explainers

Free Body Diagram

The system of forces acting on a body tends to either rotate it or make the body undergo motion. In general, when an external agent exerts a force on a body, the body undergoes translational motion and rotational motion. The body has six degrees of freedom under the influence of that force. Here, three degrees of freedom are from the translational motion while the other three are from the rotation motion. However, sometimes the bodies are not allowed to undergo any motion and are fixed, under such conditions the body is said to be constrained.

Question

Asap within 17 minutes plz solve all 3 parts as they are interrelated. voteup thanks

B1. A snowboarder rides over a jump (see the sketch below), where the launch ramp is at an
angle of 30° above the horizontal. The take-off point is 2 m above the base of the launch
ramp and the horizontal distance between the base of the launch ramp and the top of
the landing slope is 8m. The landing slope is at an angle of 45° below the horizontal.
1. How fast should the snowboarder be going at the take-off point in order to clear
the jump (i.e. to land at the top of the landing slope)?
2. Assuming that the snowboarder starts from rest and that all of their initial gravita-
tional potential energy is converted into kinetic energy, what vertical height above
the take-off point should they start from so that their take-off speed is 30 km/hr?
3. If the snowboarder has speed 30 km/hr at the take-off point, what is their maximum
height above the base of the launch ramp and how long are they in the air for before
they land on the landing slope?
Take-off point
Launch ramp.
30
2m
8m
45°
Landing slope

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