Definition inangular Systemof M form omentum particles Rigidbody Conservation I.Torque Vectorquantity. Direction:righthand τ =r×F rule. Magnitude: τ = r ⋅Fsin ϕ = r ⋅ F=(rsin ϕ ) F = r F ⊥⊥ Torque change iscalculated thetorque’swithrespectto magnitudeand (about)a direction. point. Changingthepointcan rigid

Impulse and momentum dodgeball example. What are momentum and impulse? What is conservation of momentum? Bouncing fruit collision example. Momentum: Ice skater throws a ball. 2-dimensional momentum problem. 2-dimensional momentum problem (part 2) What are two dimensional collisions? Force vs. time graphs.

As momentum is mass x velocity. So 10% increase in momentum means 10% increase in velocity. So, if initial velocity is v, then new velocity is 1.1v. Thus initial K.E. K i=mv 2/2. Final K.E. K f=m(1.1v) 2/2=1.21mv 2/2=1.21K i. Change in K.E. is (K f−K i)/K i=0.21=21%. Solve any question of Work, Energy and Power with:-. Patterns of problems.

Category. v. t. e. In Newtonian mechanics, momentum (more specifically linear momentum or translational momentum) is the product of the mass and velocity of an object. It is a vector quantity, possessing a magnitude and a direction. If m is an object's mass and v is its velocity (also a vector quantity), then the object's momentum p (from Latin.

Principle of Conservation of Angular Momentum. If the external torque acting on a system is zero, then the angular momentum of the system is constant. So for any change of state of the system the change in angular momentum is zero

Law of conservation of angular momentum: When no external torque is acting on a body then the angular momentum of that rotating body is constant. I 1 ω 1 = I 2 ω 2 (when τ = 0) Here I is the moment of inertia and ω is angular. velocity. Example:

Answer: Angular momentum of a body is given by, l = r × p. Where r is the perpendicular distance of the force from the rotational axis and p is the linear momentum. Given: r = 0.2m and p =70 Kg/s. Plugging the values in the equation, l = r × p. ⇒l =0.2 × 70. ⇒l = 14.