The State of Illinois Cycle Rider Safety Program requires motorcycle riders to be able to brake from 30 mph (44 ft/ sec) to 0 in 45 ft. What constant deceleration does it take to do that?

Q: The flow rate is cfs, which is approximately % of the flow rate of the river. (Round to the nearest…

A: 1 day = 24 hrs = 24* 60 minutes = 24*60*60 seconds=86400 seconds 7.5 gallons = 1 cubic feet So 9…

Q: A 1.6-oz golf ball is driven o¦ the tee at a speed of280 ft/sec (about 191 mph). How many…

A: The mass of the ball is found as: m=Weightg   =1.6 oz32x1 lb16 oz   =1320slugs

Q: 4. A car brakes with constant deceleration of 18 ft / s² producing skid marks that measure 306 feet…

A:

Q: To what constant deceleration would a car moving along a straight road be subjected if the car were…

A: The first equation of motion states that, v = u+at, here v is the final velocity, u is the initial…

Q: Grumpy, anti-social Professor Sosa loves standing on top of a 262 ft building and tossing water bal-…

A:

Q: The Lookout Mountain Incline Railway, located in Chattanooga, Tennessee, is 4972 ft long and runs up…

A: Given condition shows a right triangle ∆ABC where AC=4972 ft, θ=17∘ find altitude AB we know,…

Q: The current in a typical Mississippi River shipping route flows at a rate of 4 mph. In order for a…

A: Let the speed of barge in still water be x miles per hour. Given the speed of river is 4 miles per…

Q: How far will a bus travel in 4h at an average speed of 58 mi/h?

A: Given that,   Time (t) taken by bus = 4 hours   Average speed (v) of bus = 58 mi/hours

Q: If the work required to stretch a spring 5 feet beyond its natural length is 15 foot-pounds, how…

A: first, we need to find the spring constant  W=∫0a fxdx here we have W=15 and a=5 feet 15=∫05 fxdx…

Q: A car traveling at 42 ft/sec decelerates at a constant 44 feet per second per second. How many feet…

A: Given,A car traveling at 42 ft/sec decelerates at a constant 4 feet per second.i.e., initial…

Q: A man 6 ft tall walks at a rate of 2 ft/sec away from a lamppost that is 17 ft high. At what rate is…

A:

Q: A car traveling at 48 ft/sec decelerates at a constant 3 feet per second squared. How many feet does…

A: v = u+atu = 48a= -3      [decelerating value]v=0           [complete stop]Hence,t= v-uat= 0-48-3t=…

Q: A school bus tire with a diameter pf 42 inches is rotating at a rate of 250 revolutions per minute.…

A: Given, The diameter of the wheel of the school bus is 42 inches, The radius of the…

Q: If the car is traveling 65 miles per hour, about how many times per second does the wheel rotate?

A: we know that 1 mile=1.609344 kmand car is travelling 65 miles =65×1.609344 km=104.60 kmthat is car…

Q: At what rate did the temperature rise from 6 a.m. to 12 p.m.?

A: Given, Temperature versus Time graph of a spring day We have to find, at what rate did the…

Q: A 7,453 newton car is initially at rest. How much force (in Newton) is required to move the car by…

A:

Q: to water a lawn adequately, it takes 538 gal of water for every 1000 sq ft. what is the rate in…

A: given : 538 gal of water require for every 1000 sq ft∴ for 1 sq.ft 2381000 gal            ⇒0.538 gal…

Q: Suppose a cyclist was using a 150-millimeter-diameter chainring and an80-millimeter- diameter…

A: Given: Let, dc  and rc denotes the diameter and radius of Chainring respectively and ds  and  rs…

Q: A bar with a diameter of 2 inches is put under a 7000 pound load. What is the stress in the bar, in…

A: Stress in the bar in psi: The general formula to obtain stress in the bar in psi is given below:

Q: A swimming pool is 20 ft wide, 40 ft long, 6. 12 1 If the pool is being filled at a rate of 0.7 ft…

A: Given The length, width, and deep of the pool is 40 ft, 20 ft, and 3 ft respectively. The deepest…

Q: The speed of a moving sidewalk at an airport is 2ft/sec. A person can walk 45ft forward on the…

A: Let his speed on a non-moving sidewalk is = x ft/sec Given the speed of the moving sidewalk = 2…

Q: Find the time required for a square tank of side 6 ft and depth 9 ft to empty through a one inch…

A:

Q: A car traveling at 46 ft/sec decelerates at a constant 7 feet per second per second. How many feet…

A:

Q: A car traveling at 60 feet/sec decelerates at a constant rate so that it comes to a complete stop…

A: Initial velocity is equals to 60 ft./s

Q: Which has the greater grade resistance: a 2200-lb car on a 2° uphill grade or a 2000-lb car on a…

A: GIven: Weight of the car = 2200 lb Angle = 20 Weight of the car = 2000 lb Angle = 2.20

Q: a large gear with 42 rotates at 25 rpm. it turns a small gear with 14 teeth. how fast does the small…

A:

Q: A car traveling at 46 ft/sec decelerates at a constant 8 feet per second per second. How many feet…

A:

Q: In Moscow in 1987, Natalya Lisouskaya set a wom-en’s world record by putting an 8 lb 13 oz shot 73…

A: From the given information we get: 73 ft 10 inch= 73.83 ftg= 32

Q: How far above the surface of the Earth would he have to go to "lose" 13 % of his body weight?…

A: Follow the procedure given below.

Q: A basement for a 25 ft by 42 ft house is to be dug at a depth of 8 feet. How many cubic yards of…

A: Given: Size of basement is 25 ft×42 ft and depth of house=8 ft.

Q: due to the current. How far did he actually swim from his starting point? Round to the nearest…

A:

Q: A wheel has a diameter of 100 centimeters. If the wheel is supporting a cart moving at 45 kilometers…

A:

Q: A car traveling at 42 ft./sec decelerates at a constant 3 feet per second squared. How many feet…

A:

Q: A sign in an elevator in France indicates that it's maximum weight capacity is 300 kilograms. What…

A: The maximum weight capacity of the elevator is 300 kilograms.

Q: The fuel efficiency,  in miles per gallon,  of an American- made car is it discrete or continuous?

A: We have to identify type of variable.

Q: A civil engineer relates the thickness T, in inches, and height H, in feet, of a square wooden…

A: Given that, T=LH2254 ------(1) T=4 inches H=10 feet To find Crushing Load L:

Q: How much work is done lifting a 40 pound object from the ground to the top of a 55 foot building if…

A:

Q: A car braked with a constant deceleration of 40 ft/s2, producing skid marks measuring 80 ft before…

A: Deceleration = dv/dt And v = dx/dt where v is the velocity and x is the displacement Hence,…

Q: water pressure requirement at the roof

A: Given : High-rise building is 108 feet tall To find: How much pressure must be available at ground…

Q: rels west at 20 mi/hr and the travels south at 15mi/hr. At what rate utes after they leave port?

A:

Q: At a constant pressure, what temperature must be reached to increase the volume of a 100mL samples…

A:

Q: An aircraft is climbing at a constant 32 degree angle to the horizontal. If the speed is 550 mph,…

A: Refer to the question . An aircraft is climbing at a constant 32 degree angle to the horizontal and…

Q: The wheels on a racing bicycle have a radius of 10 inches. How fast is the cyclist traveling in…

A: Circumference of wheel = 2πr                                  = 2 × 22/7 × 10 inches Distance…

Q: was an earthquake in South America with magnitude 4.3 that caused only minor damage. How many times…

A:

Q: Beaumont, Texas, is about 150 miles from Toledo Bend. If Leo Miller leaves Beaumont at 4 a.m. and…

A: Consider that Beaumont, Texas is at a distance of 150 miles from Toledo Bend. Leo Miller leaves…

Q: If a cyclist was using his 210-millimeter-diameter chainring and pedaling at a rate of 85…

A: If a cyclist was using his 210-millimeter-diameter chain ring and pedaling at a rate of 85…

Q: A man 6 ft tall walks at a rate of 5 ft/sec away from a lamppost that is 14 ft high. At what rate is…

A:

Q: If a 250 meters long train is traveling at an average speed of 60 kph, how long it would take that…

A: According to the question, Speed of train 60 kph To convert the speed of train in meter per second,…

Q: An observer located 3 km from a rocket launch site sees a rocket at anangle of elevation of 38°. How…

A: Given: An observer located 3 km from a rocket launch site sees a rocket at an angle of elevation of…

Q: The country withe the greatest population density is Monaco, where approximately 32,500 people live…

A: Given, in Monaco 32,500 people live in an area of 1.95 square kilometer.