At what time did you hit the log

Reference no: EM13193326

You are driving along a country road when you suddenly notice a log in the road ahead of you and immediately apply your brakes. You travel a distance of s(t) = 65 t - 5 t^2 feet in t seconds after you hit the brakes.

The log was 210 feet ahead of you when you noticed it, which unfortunately wasn't soon enough.
At what time (in seconds) did you hit the log?
How fast were you going (in ft/sec) when you hit it?

Reference no: EM13193326

Questions Cloud

How many different house numbers : hardware store sells house numerals. It has large quantities of the numerals 3, 5 and 8 but is out of all the others. How many different house numbers, with no more than three digits, can be made from these numerals?

Describe the possible lengths of a side if the area : the perimeter of a rectangle is 54 feet. describe the possible lengths of a side if the area of the rectangle is not to exceed 152 square feet.

At what time during a full revolution is changing most : the wheel revolves at a rate of πrad/min and the observer's line of sight with a specific seat on the Ferris wheel makes an angle Ø with the horizontal. at what time during a full revolution is Ø changing most rapidly?

Find out the ph of a solution : Determine the pH of a solution of a .150 M NaF solution. (ka for HF=3..5*10^-4) 3)Determine the pH of .050 M H2CO solution and the % dissociation of each step

At what time did you hit the log : he log was 210 feet ahead of you when you noticed it, which unfortunately wasn't soon enough.

Define a variable for the value that is unknown : 5,500,000 gallons of ice cream are produced each day how many days it will take to produce 357,500,000 Define a variable for the value that is unknown.

State what is the empirical formula of a hydrocarbon : What is the empirical formula of a hydrocarbon which produces 2.703 g CO2 and 1.108 g H2O

Find the angular speed of the wheels in radians : A car is moving at a rate of 76 miles per hour, and the diameter of its wheels is 2.9 feet.

What questions should you ask and how should you proceed : What questions should you ask and how should you proceed? What is chain of custody and why must it be followed in investigations?

User Account

All Pages