Solution Found!
Answer: Figure E2.12 shows the velocity of a solar-powered
Chapter 2, Problem 12E(choose chapter or problem)
Figure E2.12 shows the velocity of a solar-powered car as a function of time. The driver accelerates from a stop sign, cruises for 20 s at a constant speed of 60 km/h, and then brakes to come to a stop 40 s after leaving the stop sign.
(a) Compute the average acceleration during the following time intervals:
(i) \(t=0 \text { to } t=10 \mathrm{~s}\)
(ii) \(\mathrm{t}=30 \mathrm{~s} \text { to } \mathrm{t}=40 \mathrm{~s}^{\circ}\)
(iii) \(t=10 \mathrm{~s} \text { to } t=30 \mathrm{~s} ; \text { (iv) } t=0 \text { to } t=40 \mathrm{~s} \text {. }\)
(b) What is the instantaneous acceleration at \(\mathrm{t}=20 \mathrm{~s} \text { and at } \mathrm{t}=35 \mathrm{~s}\)?
Equation Transcription:
Text Transcription:
t=0 to t=10 s;
t=30 s to t=40s;
t=10 s to t=30 s; (iv) t=0 to t=40 s
t=20 s and at t=35s
Questions & Answers
QUESTION:
Figure E2.12 shows the velocity of a solar-powered car as a function of time. The driver accelerates from a stop sign, cruises for 20 s at a constant speed of 60 km/h, and then brakes to come to a stop 40 s after leaving the stop sign.
(a) Compute the average acceleration during the following time intervals:
(i) \(t=0 \text { to } t=10 \mathrm{~s}\)
(ii) \(\mathrm{t}=30 \mathrm{~s} \text { to } \mathrm{t}=40 \mathrm{~s}^{\circ}\)
(iii) \(t=10 \mathrm{~s} \text { to } t=30 \mathrm{~s} ; \text { (iv) } t=0 \text { to } t=40 \mathrm{~s} \text {. }\)
(b) What is the instantaneous acceleration at \(\mathrm{t}=20 \mathrm{~s} \text { and at } \mathrm{t}=35 \mathrm{~s}\)?
Equation Transcription:
Text Transcription:
t=0 to t=10 s;
t=30 s to t=40s;
t=10 s to t=30 s; (iv) t=0 to t=40 s
t=20 s and at t=35s
ANSWER:
Step 1 of 6
The velocity graph shows the velocity of solar powered cars as a function of time.
