Question

On two occasions you accelerate uniformly from rest along an on-ramp in order to merge into interstate traffic at 65 mi/h. On-ramp A is 200 m long and on-ramp B is 400 m long.

(a) Is your acceleration along on-ramp A greater than, less than, or equal to your acceleration along ramp B?

(b) Choose the best explanation from among the following:

(i) The shorter acceleration distance on ramp A requires greater acceleration

(ii) In each case, you start from rest and have the same final speed

(iii) The greater distance traveled on ramp B requires a greater acceleration

Answer #1

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