How much time does it take her to close the door

Assignment Help Physics

Reference no: EM13318551

While exploring a castle, Exena the Exterminator is spotted by a dragon who chases her down a hallway. Exena runs into a room and attempts to swing the heavy door shut before the dragon gets her. The door is initially perpendicular to the wall, so it must be turned through 90 degrees to close. The door has a height of 2.90 and a width of 1.10m, and its weight is 790N . You can ignore the friction at the hinges. If Exena applies a force of 240N at the edge of the door and perpendicular to it, how much time does it take her to close the door?

Use 9.80m/s^2 for the acceleration due to gravity.

Reference no: EM13318551

Questions Cloud

Compute the focal length of the mirror : A 6.0cm tall object is placed 39cm in front of a spherical mirror. It is desired to produce a virtual image that is upright and 4.8cm tall

Calculate the specific energy when depth of flow : A rectangular channel of 20 f t width and having n = 0.017 carries flow of 800 f t^3/s. Calculate (a) critical depth (b) the minimum specic energy (c) the specic energy when depth of flow is 7 f t.

Calculate the base width of channel of side slopes : A trapezoidal canal of side slopes 1V : 2H, and having n = 0:017 is to carry a uniform flow of 37 m^3/s on a slope of 0.0005 at a depth of 1.5 m. Calculate the base width of channel

Conflict with the thirteenth amendment : Explain how does Justice Henry Brown's argument about the seperate car act and how it does not conflict with the thirteenth amendment?

How much time does it take her to close the door : While exploring a castle, Exena the Exterminator is spotted by a dragon who chases her down a hallway. how much time does it take her to close the door

Estimated inflation will average per year for an annuity : You may pay $15,000 for an annuity that pays $2500 per year for the next 10 years . You want a real rate of return of 5% , and you estimated inflation will average 6% per year.

Calculate the profit or loss for the investment banker : How many shares of stock must be sold for the company to net $40 million after costs and expenses?

Find the force the man is pushing on the box : A large box with mass 45 kg is being pushed up a ramp at a 32o incline at a constant velocity by a man pushing parallel to the incline for 7.80 m, determine The force the man is pushing on the box

What will be the loan effective annual interest rate : How much money does Kristi need to have in her retirement saving account today if she wishes to withdraw $25,000 per year for 30 years? She expects to earn an average rate of 8%.

User Account

All Pages