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A car is traveling at 100 km/h when the driver sees an accident 80 m ahead and slams on the brakes. What const?

A car is traveling at 100 km/h when the driver sees an accident 80 m ahead and slams on the brakes. What constant deceleration is required to stop the car in time to avoid a pileup? (Give your answer correct to two decimal places.)

100 km an hour is 1,6666666 km a minute is 27,77777meters a second.
I guess the 2 second reaction time is to be ignored :) )
he travels the 80m in 2.88 seconds ( 80 /27,77777)
ok now I`m stuck
in these 2.88 seconds ha has to go from 100 to 0
100 dividet by 2,88???


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LED driver with constant current power supply step down Input5 35V Out125 30V
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LED driver with constant current power supply step down Input5 35V Out125 30V
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Koolatron - Koolatron Voyager Cooler


Koolatron - Koolatron Voyager Cooler


$107.00


The Koolatron Voyager 29 quart 12 Volt cooler is ruggedly designed with plenty of room to store and cool all your favorite travel snacks and beverages. Your family will no longer need to stop for food or soda while on the road. The time and money saved by eliminating stops at the convenience store while on trips will more than pay for the Voyager over time. A 12 Volt plug is included with your Vo...

Sharper Image Wireless Internet Weather Station, Model# EC-WS115


Sharper Image Wireless Internet Weather Station, Model# EC-WS115


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This Sharper Image Wireless Internet Weather Station gives you up-to-date weather forecasts at a glance. Choose from over 10,000 North American cities. The large colorful screen displays a four-day forecast using 28 easy-to-read weather icons. Wireless technology lets you use the weather station in any part of the house. Main unit runs on the included AC adapter. Indicator Type: Weather station, A...

GE 50487 Ultrasonic Sensor Parking Alert


GE 50487 Ultrasonic Sensor Parking Alert


$15.66


GE SMARTHOME PARKING ALERT *Ultrasonic sensor detects distance or car from wall *Red indicator tells you when to stop *Choose from 3 stop zones-1, 2, and 3 ft. *Mount anywhere-includes Velcro strips or screw Eyelets *Compatible with G.E. Smart Remote Plus and Smart Security Plus products *1 year battery life-low battery indicator *Requires 4 AA batteries (not included)...

Ledwholesalers 30 Watt LED Power Suppply Driver Transformer 120 to 12 Volt DC Output, 3207


Ledwholesalers 30 Watt LED Power Suppply Driver Transformer 120 to 12 Volt DC Output, 3207


$1.98


Light emitting diodes (LEDs) are low-voltage light sources that require a constant DC voltage or current to operate optimally. Because they operate on a low-voltage DC power supply, they easily adapt to different power supplies, have longer standby power, and are safer. LEDs require a device that can convert incoming AC power to the proper DC voltage and regulate the current that flows through the...

Non Waterproof 100 Watt, Led Driver Power Supply 12 Volt DC, by LEDwholesalers 3219-100w


Non Waterproof 100 Watt, Led Driver Power Supply 12 Volt DC, by LEDwholesalers 3219-100w


$28.00


Light emitting diodes (LEDs) are low-voltage light sources that require a constant DC voltage or current to operate optimally. Because they operate on a low-voltage DC power supply, they easily adapt to different power supplies, have longer standby power, and are safer. LEDs require a device that can convert incoming AC power to the proper DC voltage and regulate the current that flows through the...

Party Girl


Party Girl


$1.99


...

Party Girl [HD]


Party Girl [HD]



...


LinkSprite LED PWM Dimmer Constant Current Driver (DC:12V -200V)


LinkSprite LED PWM Dimmer Constant Current Driver (DC:12V -200V)


$30.00


LinkSprite LED PWM Dimmer Constant Current Driver is suitable for commercial lighting projects. It can accept PWM controlling. Each driver can triple the number of controllable LEDs.

It can be used with the LinkSprite street lighting control system to control the LED street light.

Arduino sample control code: http://www.linksprite.com/download/showdownload.php?lang=en&id=101...


(1-3)Watts x (1-3)Pcs Dimmable Constant Current LED Driver


(1-3)Watts x (1-3)Pcs Dimmable Constant Current LED Driver


$9.15


We have different types of high power LED. They are 3/5 watts LEDs, Cree MC-E & XR-E, high power 10/5mm LED, High power accessories, high power LED drivers, high power piranha super flux and prolight 1 watt LEDs. All are low power consumption, save energy, high efficiency, intensely bright, long life time, I.C. Compatible. It can use for outdoor/ indoor lighting, advertising signs, indicators read...

1W LED Driver 12VDC input - 3x3W


1W LED Driver 12VDC input - 3x3W


$7.95


Note: this driver is not able to drive Red & Amber/Yellow LEDs which are using less working voltage than 3.5V typ. Mixing these colors into regular 3.5V LEDs will damage the LEDs. To make it work with 3x Blue/White/Warm White/Green LEDs, please add one 2-3ohm 2Watts resistor to the input side of the driver(solder it on one of the red cable; the input side have 2 red cables)....


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