Part B Constants A 1400 kg car is approaching the hill shown in (Figure 1) at 12

Question

Part B Constants A 1400 kg car is approaching the hill shown in (Figure 1) at 12 m/s when it suddenly runs out of gas. Neglect any friction What is the car's speed after coasting down the other side? Express your answer to two significant figures and include the appropriate units You may want to review (Pages 300- 304) Figure 1 of 1 Value m Submit Previous Answers Request Answer 5.0° Incorrect, Try Again; 5 attempts remaining Recall that the change in height between the initial and the final points is 5 meters

Explanation / Answer

a) The only thing that matters is the conversion of gravitational potential energy to kinetic energy;

?mgh = ?(1/2)mv2 so

from the of conserving energy

0.5*1400*12^2 + (1400*9.8*5) = 0.5*1400*v^2

so.. v = 15.56 m/sec

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