Q1 a lighthouse that rises 49 above the surface of water

Reference no: EM13354563

Q1. A lighthouse that rises 49 above the surface of water sits on a rocky cliff that extends 19 from its base. A sailor on the deck of a ship sights the top of the lighthouse at the angle of 30.0 above the horizontal.

Q2. A high-speed drill reaches 2000 rpm in 0.70 s. What is drill's angular acceleration? Through how many revolutions does it turn during this first 0.70 s?

Q3. A car is travelling at 55.0 km/h on a flat highway.

(a) If the coefficient of friction between road and tires on a rainy day is 0.100, what is the minimum distance in which the car will stop?

(b) What is the stopping distance when the surface is dry and the coefficient of friction is 0.900?

Reference no: EM13354563

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