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Streaming refers to the streamlined shape of an object, which helps minimize air resistance (drag) as it moves through the air. This is often applied in aerodynamics to improve the efficiency of vehicles and objects moving through air.

W\(_{moon}\) = mass x g = mass x \(\frac{10}{6}\) = \(\frac{10m}{6}\)N W\(_{earth}\) = mass x g = mass x 10 = 10m mass = constant g on earth = 10m/s\(^2\) and g on moon = \(\frac{1}{6}\) x that on earth Therefore, The weight of a bowling ball on the moon would be \(\frac{1}{6}\), the weight on earth.

Angular velocity(\(\omega\)) = 2\(\pi\) x rev per sec Rev. per sec = \(\frac{800}{60}\) \(\approxeq\) 13.33 rev/s Angular velocity(\(\omega\)) = 2\(\pi\) x 13.33 \(\approxeq\) 26.7\(\pi\)rad/s

The tangential force acting on an object that prevents it from sliding freely on the adjacent surface is called friction. Friction plays a crucial role in preventing or resisting motion between surfaces in contact.

Effective horizontal force = 15N T = tension on the rope F\(_x\) = T sin\(\theta\) 15 = T x sin 30º T = \(\frac{15}{0.5}\) = 15 x 2 = 30N.

Mechanics is the branch of physics that deals with the motion of objects and the forces acting on them. It is the foundation of all other branches of physics, and it is used to study everything from the motion of planets to the motion of electrons.

Acceleration[a] = \(\frac{[forward - resistive]force}{mass}\) a = \(\frac{1240-800}{1220}\) → \(\frac{440-800}{1220}\) a = 0.36m/s\(^2\), v = 4m/s, s = ? Second equation of motion: s is distance u is initial velocity v is final velocity a is acceleration v\(^2\) = u\(^2\) + 2as 4\(^2\) = 0\(^2\) + 2 * 0.36 * s 16 = 0.72s 22.2m = s

Given m = 10\(^{-2}\) w = 100rads\(^{-1}\) F = mw\(^{2}\)r r = 0.2m F = ? = 10\(^{-2}\) x (100)\(^{2}\) x 0.2 = 20N

Simple harmonic motion (SHM) is a special type of periodic motion where the restoring force on the moving object is directly proportional to the magnitude of the object's displacement and acts towards the object's equilibrium position.

Angular speed of the electron (W) w = \(\frac{Velocity}{Radius} = \frac{V}{R}\) = \(\frac{2.0 \times 10^6}{6.1 \times 10^{11}}\) = 3.28 x 10\(^{16}\) rads\(^{-1}\)

Work is done whenever the given conditions are satisfied. (ii) there is a displacement of the body caused by the applied force along the direction of the applied force. No displacement takes place in this case. So, work done by a centripetal force is always zero. The work done by centripetal force in the case of a uniform circular motion is 0 joules.

The concept of centrifugal force can be applied in rotating devices, such as centrifuges, centrifugal pumps, centrifugal governors, and centrifugal clutches, and in centrifugal railways, planetary orbits and banked curves, when they are analyzed in a rotating coordinate system.

Since the cars are moving in the same direction, the velocity of a body A, Va,relative to another body B, Vb is given by V = Va - Vb ∴ the velocity of faster car is measured by the observer in the slower car is V = 130kmh-1 - 100 kmh-1 = 30 kmh-1

Acceleration = (increase in velocity)/time taken = (45 - 25)/10 = (20)/10 = 2ms-2

Rough surface promotes friction. Therefore, roughness of conveyor belt prevents the load from slipping