(a) A car speedometer has a 6% uncertainty. What is the range of
possible speeds when it reads 80 km/h?
km/h (lowest)
km/h (highest)
(b) Convert this to miles per hour.
mi/h (lowest)
mi/h (highest)
(a) A car speedometer has a 6% uncertainty. What is the range of possible speeds when...
A car speedometer has a 4% uncertainty. What is the range of possible speeds (in km/h) when it reads 60 km/h?
a. what is the car's highest possible speed, in kilometers per hour, when the speedometer reads 94km/h? b. what is the car's lowest possible speed, in kilometers per hour, when the speedometer reads 94km/h? n 2: Suppose a car speedometer has a 4.4 % uncertainty.
As two cars move toward each other, the speedometer of one car reads 57.9 km/h while the speedometer of the other car reads 71.0 km/h. Assume that the speed of light is 88.4 km/h. (a) What is the speed of one car as measured by the driver of the other? (b) What does the classical velocity-addition equation give for the speed of one car relative to the other?
Hassan is sitting in a car moving along the highway. He reads 90km/h on the speedometer 4. a. b. c. What does the reading of the speedometer indicates? Convert the speed given into m/s 10 minutes later the speed of the car was still 90 km/h. We plotted a graph showing the variation of speed with time i. Is the speed of the car constant? Increasing or decreasing? ii. What is the type of motion in this case? Speed d....
Bicyclists in the Tour de France reach speeds of 30.5 miles per hour (mi/h) on flat sections of the road. (a) What is this speed in kilometers per hour? km/h (b) What is this speed in meters per second? m/s
Supplementary Sheet Velocity Grade & Physics Use the following formulas to perform your calculations: Distance Speed x Time Time Speed Speeds Distance Time 1. Ali is driving along the highway from Tyre to Tripoli. He Travels 150Km in 3 hours a. Calculate the average speed of the car in Km/h b. What is the speed in m/s 2. A car travels with an average speed of 55 km/h for 2.5 hours. What is the distance covered by the car? How...
3. The distribution of passenger vehicle speeds on the Interstate 5 Freeway is nearly normal with a mean of 72.6 mi/hr and a standard deviation of 4.78 mi/hr. (Use the Normal Table). Round all percents to the nearest tenth. What percent of passenger vehicles travel slower than 80 miles per hour? a. b. What percent of passenger vehicles travel between 60 and 80 miles per hour? How fast do the fastest 5% of passenger vehicles travel? C. d. The speed...
You are traveling on a hilly road. At a particular spot, when your car is perfectly horizontal, the road follows a circular arc of some unknown radius. Your speedometer reads 90.0 km/h, and your apparent weight is 30% larger than usual. Use g-9.80 m/s2 for this problem. (a) Are you at the bottom of a hill or the top of a hill at that instant? the bottom of a hill the top of a hill There's not enough information to...
rate 1. True or False? Explain: a. If a car's speedometer is constant, then the car cannot be accelerating. b. Ifan =0 for a moving object, then the object cannot be accelerating. c. The arc length of a space curve depends on the parameterization. d. The curvature of a circle is the same as its radius. e. The normal component of acceleration is a function of both speed and curvature. 2. Projectile Motion: A projectile is launched with an initial...
a. Two cyclists racing on parallel roads maintain constant speeds of 30 mi/hr and 25 mi/hr. The faster cyclists crosses the finish line one hour before the slower cyclist. How long was the race (in miles)? b. Because Boat A travels 1.5 times faster than Boat B, Boat B was given a 1.5-hr head start in a race. How long did it take Boat A to catch Boat B? c. A plane flew into a headwind and made the outbound...