I need help.

[JSal]

The first platform is 78.31m higher than the second platform and the stairs between them are 30 degrees higher than the horizontal. If the car is projected from the first platform at 111.6 km/h and touched the ground that is 100m from the second platform, so the car needs to project with what speed to be land at the second platform? Assume the first platform and the second platform are all horizontal. Ignore the air resistance.

 

[JeffM]

The first platform is 78.31m higher than the second platform and the stairs between them are 30 degrees higher than the horizontal. If the car is projected from the first platform at 111.6 km/h and touched the ground that is 100m from the second platform, so the car needs to project with what speed to be land at the second platform? Assume the first platform and the second platform are all horizontal. Ignore the air resistance.

Nice problem.

What have you done so far?

The trajectory of the car can be represented as a what?

What do imagine is the relevance of 30 degrees?

With those two hints, what might be some next steps?

 

[Steven G]

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