Question

3. A cop sits in a parked car 10 feet from parked car 10 feet from a straight road. As you drive along the road, the cop aims & radar um at your car the distance from your car to the cop feet. The radar gun measures the rate a Tacir gun mensures the rate at which your distance from the cop is changing with respect to time, which is ds/dt. Let be the distance, in feet, of your ca point on the road that is closest to the cop, so your ear's velocity is de in terms of , and I. label a diagram of this scenario, and write (b) Use part a to explain why * Thus the radar gun's measurement of always underestimates your car's velocity. (This is why if the radar gun measures a speed greater than the speed limit on the road, the driver deserves a ticket.) (c) Does the conclusion in part (b) depend on the cop's car being 10 feet, rather than some other (positive) distance, from the road?

Answer 1

Please give me ?

solution : - Acrefeet - •Sfeet 10 feet O ABC is a right angled. AC² = A5+ Bc. 3= antior. diffesearticute both sides. 2st - ex eo on to b) since ssx (triangle) Chypotonoes > side)

distance between road and radar gun less. than distance distance s is more s is more clase a cala to distance hence (s) speed of rodas gun measured will be Close to da) speed of car. So less the. distance more accurate the measudement of sadargain