Mechanics | Relativity Answers

A ship leaves the island of Guam and sails a distance 290 Km at an angle 50.0 north of west.
In which direction must it now head so that its resultant displacement will be 105 Km directly east of Guam? (Express your answer as an angle measured south of east)

A net force with magnitude (5.00 N/m2)x2 and directed at a constant angle of 31.0o with the +x-axis acts on an object of mass 0.250 kg as the object moves parallel to the x-axis. How fast is the object moving at x = 1.50 m if it has a speed of 4.00 m/s at x = 1.00 m?

A sample of an unknown material weighs 300.0 N in air and 200.0 N when submerged in an alcohol solution with a density of 70.0 kg/m(cubed)
What is the density of the unknown solution?

Two cars move in same direction along parallel roads.one of them is 100m long travelling with a velocity of 7.5 metre per second. How long it take the first car to take the second car?

The four tires of an automobile are inflated to an absolute pressure of 2.00 x 105 Pa. Each tire has an area of 0.0240 m2 in contact with the ground. Determine the weight and mass of the automobile

two cars traveling from the same place at the same time and travel in opposite directions. one car travels an average of 20 kph faster than the other. After 2 hours the cars are 40okm apart. find the speed of each car.

The benches of gallery in cricket ground are 1m wide and 1 m high.A batsman strikes the ball at a level 1 m above the ground and hits a sixer.The ball starts at 35m/s at an angle of 53degree with horizontal.The benches are perpendicular to the plane of motion and the first bench is 110m from batsman.ON WHICH BENCH WILL THE BALL HIT?

a bullet from a 0.38 caliber handgun having a 6 inch barrel attains a muzzle speed of meters per second. assuming constant acceleration, how much time does it take the bullet to travel down the barrel?

a taxi driver allows his taxi cab weighing 17.08 kN to coast in neutral, and air resistance decelerates the car from 35.8 m/s to 22.4 m/s in a period of 24 seconds. calculate (a) the average deceleration, (b) the displacement of the car while it is decelerating.

A VEHICLE IS TRAVELLING AT 30KM/H WHEN ITS POWER IS SHUT OFF.IT TRAVELS 0.9KM BEFORE IT FINALLY COME TO REST.CALCULATE THE TIME TAKEN FOR THE VEHICLES TO COME TO REST AND THE VALUE OF THE RETARDATION.