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Physics
5. The body with mass m2 = 10 kg slides on the horizontal table with coefficient of friction = 0.2. The mass of the hanging body is m1 = 2.5 kg. The two bodies are connected by a light and elongated thread, which passes through the small scroll fixed to the edge of the table. Will the system slide if m1 = 1.5 kg?
Physics
The mass of the body is M = 5 kg, while the tensile force F = 50 N forms the angle a = 30 ° with the horizontal surface with coefficient of friction = 0.15 Determine the acceleration, the normal reaction force and the compressive force on the plane
Physics
The hail grains during the fall encounter the force of resistance in the air. Once the uniform motion is established, the 2 g hailstone travels 120 m for 20 s. Calculate the coefficient of resistance for the friction force without taking into account the Archimedes force.
Physics
The wooden box is thrown with some initial speed in the horizontal plane and after crossing the twilight 5 m for 2 s it stops. Calculate the coefficient of sliding friction.
Physics
6. The coefficient of friction of the slip between a body and the horizontal plane It is = 0,1. The body is released to slide with an initial velocity Vo = 2.6 m / s and after some time stops. a) Calculate the friction force of the slide when it is known that the body mass is 500 g. b) How long did the movement last until the body stopped?
Physics
The body with mass m = 1.2kg is pulled with the horizontal force F = 20 N on a rough horizontal surface and during 3 s makes the way 6 m starting from the resting position. Calculate the force and coefficient of sliding friction.
Physics
The aircraft with mass m = 3 t flies in a straight line with a speed of 1500 km / h. Four forces act on the plane: the force of gravity G. the lifting force N, the moving force F and the resistance force f. Calculate the lifting force N and the resistance force f, knowing that the driving force is F = 2600N.
Physics
Sphere with mass 200 g and initial velocity 2 m / s stops after 10 s under the action of friction friction force f. What is the value of this force?
Physics
The body with mass m = 3 kg, under the action of the attractive force F = 10 N, slides in the horizontal plane and traverses the mug 20 m during the time 4 s, starting from the resting state. Calculate the friction force of the flesh exerted by the ground on the body.
Physics
A modern riffle can fire a bullet from 180 m/s to 1500 m/s.
a. Compute for the maximum height of a bullet fired by a riffle with an average velocity of 500m/s at an angle of 800.
a. Compute for the maximum height of a bullet fired by a riffle with an average velocity of 500m/s at an angle of 800.
