A train is traveling with a velocity of 23 m/s when the conductor sees a car stuck on the tracks 500 m away. What acceleration is needed for the train to stop 10 m from the car?

Explanation:

Given

--- initial velocity

--- final velocity

--- distance of the car

Required

Determine the train's acceleration to stop 10m before the obstacle

This will be solved using:

Where

i.e to stop 10m before the car

So, we have:

Collect like terms

Make a the subject

--- approximated

It is negative because the train decelerates

the equation above shows how temperature f, measured in degrees fahrenheit, relates to a temperature c, measured in degrees celsius. based on the equation, which of the following must be true?

a temperature increase of 1 degree fahrenheit is equivalent to a temperature increase of

5

9

degree celsius.

a temperature increase of 1 degree celsius is equivalent to a temperature increase of 1.8 degrees fahrenheit.

a temperature increase of

5

9

degree fahrenheit is equivalent to a temperature increase of 1 degree celsius.

a) i only

b) ii only

c) iii only

d) i and ii only

answer:

okay

explanation: