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Mechanics | Relativity
A hiker walks 2.5 km, 53.1°N of E. Then he walks another 2.0 km eastward. How far is the hiker from his starting point?
Mechanics | Relativity
A force required just to prevent a body sliding down a rough inclined plane of angle 45° and cocfficient of friction 0.6 is F. The minimum force required to move the body up the plane is
Ans 4F
Mechanics | Relativity
Explain degree of freedom.
Mechanics | Relativity
Explain central force?
Mechanics | Relativity
A drone with a mass of 5,8kg is used to lift a mass of 3,2kg by using an inextensible cable of negligible mass. The tension on a cable is T, and the drone accelerates vertically upwards at 0.9. The lifting force of the drone is 180N.The friction force experienced by the drone and the mass as they move upwards is the same.
1)Calculate the power of the motors of the drone if the drone reaches its maximum constant speed of 19,7
1)Calculate the power of the motors of the drone if the drone reaches its maximum constant speed of 19,7
Mechanics | Relativity
A jet airliner moving initially at 399 mph (with respect to the ground) to the east moves into a region where the wind is blowing at 552 mph in a direction 72◦ north of east. What is the new speed of the aircraft with respect to the ground? Answer in units of mph.
Mechanics | Relativity
A person walks 46 m East and then walks 39 m at an angle of 47 degrees North of East. What is the magnitude of the total dis-placement ? Answer in units of m.
Mechanics | Relativity
A football coach walks 10 meters eastward, then 18 meters westward, then 22 meter eastward, and finally 34 meters westward. What is the magnitude and direction of the displacement?
Mechanics | Relativity
A person walks 46 m East and then walks 39 m at an angle of 47 degrees North of East. What is the magnitude of the total dis-placement ? Answer in units of m.
Mechanics | Relativity
A person walks 33 m East and then walks 38 m at an angle of 35 degrees North of East. What is the magnitude of the total dis-placement ? Answer in units of m.
