Using Equation Substitution Video Lessons

Concept

# Problem: Jimmy is at the bottom of a hill while Billy is on the hill a distance 30 m up the hill from the bottom. Jimmy is at the origin of an xy coordinate system, and the line that follows the slope of the hill has an equation y = (0.18) x. Jimmy throws an apple to Billy at an angle of 50° with respect to the horizontal. The acceleration of gravity is 9.8 m/s2. With what speed v0 must he throw the apple to reach Billy?1. 18.60342. 22.35813. 13.96374. 18.97995. 23.63196. 21.2127. 24.48648. 25.07629. 26.880610. 13.2463

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###### Problem Details

Jimmy is at the bottom of a hill while Billy is on the hill a distance 30 m up the hill from the bottom. Jimmy is at the origin of an xy coordinate system, and the line that follows the slope of the hill has an equation y = (0.18) x. Jimmy throws an apple to Billy at an angle of 50° with respect to the horizontal. The acceleration of gravity is 9.8 m/s2. With what speed v0 must he throw the apple to reach Billy?

1. 18.6034

2. 22.3581

3. 13.9637

4. 18.9799

5. 23.6319

6. 21.212

7. 24.4864

8. 25.0762

9. 26.8806

10. 13.2463