The maximum braking acceleration of a car on a dry road is about 8.0 m/s^2. two cars move head-on toward each other at 88 km/h(55 mi/h), and their drivers brake when they’re 85 m apart. Plot position versus time for both cars on a single graph, noting all relevant values on the position axis.

You decide to travel by car for your holiday visits this year. You leave early in the morning to avoid congestion on the roads. This enables you to drive at a comfortable speed of v1=67.1 mph for t1=1.70 hours. However, after this time, you unexpectedly come to a stop for tstop=43.8 min. Traffic starts moving again and you finish your travel at v2=55.6 mph for an additional t2=1.40 hours. There are 1609 meters in one mile. What was the total distance d traveled? What was the average speed v?

A motorcycle is following a car that is traveling at constant speed on a straight highway. Initially, the car and the motorcycle are both traveling at the same speed of 23.0 m/s, and the distance between them is 55.0 m. After t₁ = 3.00 s, the motorcycle starts to accelerate at a rate of 7.00 m/s². The motorcycle catches up with the car at some time t2. Figure 1 of 1 car motorcycle x(1) car x(1) x(1) BRE car motorcycle motorcycle A time с time time motorcycle x(1) car car LE motorcycle B time D time How long does it take from the moment when the motorcycle starts to accelerate until it catches up with the car? In other words, find t₂ - t₁. Express the time numerically in seconds using three significant figures. ► View Available Hint(s) VE ΑΣΦ ? t₂-t₁= 1.58 Submit Previous Answers X Incorrect; Try Again; 4 attempts remaining Part C How far does the motorcycle travel from the moment it starts to accelerate (at time t₁) until it catches up with the car (at time t₂)? Should you need to use…

A rock parrot (Neophema petrophila) flies 37 m south and then 49 m west, in a total time of 31 minutes. What is its average velocity from the starting position? Enter only the numerical part of your answer (in km/h) to two significant figures.

A westward moving bicycle increases its speed from 2.0 m/s to 12.0 m/s in 4.0 seconds. What is the magnitude (value) and direction of the acceleration? Magnitude: Direction:

Physics Question #23

You are driving a car on a straight road at a speed of +25.0 m/s when you spot a desert tortoise walking across the road in front of you. You brake the car to a stop. The car slows down with a constant acceleration of −2.0 m/s2. How far does the car travel as it slows to a stop?

A blue car travels down a straight road at a constant speed of 19.1 m/s. As they pass a red car, initially stopped on the side of the road, the red car speeds up at a rate of 2.02 m/s2. How much distance (in m) does the red car travel before it overtakes the blue car?