Recent content by sumitmanhas

angular momentum urgent help ... Homework Statement Which of the following is an accurate statement 1) The angular momentum of a moving particle depends on the specific origin with respect to which the angular momentum is calculated. 2) If the torque acting on a particle is zero about an...

i believe the first one is more accurate...

but what would be the angular velocity of the turntable then for finding the angular velocity of the person with respect to ground . do i use then one i calculated at my first attempt . and then plug it into equation for finding the angular velocity of person with respect to ground.?? and...

what i think is that angular velocity of the person with respect to ground = 4.1 + angular velocity of table can be wrong though...someone reply as soon as possible this question is due within an hour

so for the first 1 ) this is likely to be true , which i never thought of because evrytime you calculate your angular momentum you choose the point of rotation and from there using right hand rule determine the direction (in or out) 2) makes no sense because if there is no torque acting on the...

Homework Statement Suppose a 74 kg person stands at the edge of a 6.6 m diameter merry-go-round turntable that is mounted on frictionless bearings and has a moment of inertia of 1820 kg.m^2. The turntable is at rest initially, but when the person begins running at a speed of 4.1 m/s (with...

Homework Statement Which of the following is an accurate statement 1) The angular momentum of a moving particle depends on the specific origin with respect to which the angular momentum is calculated. 2) If the torque acting on a particle is zero about an arbitrary origin, then the...

so like u said , using kinematics equation vf2 = vi2 + 2ad where , vf = o (final velocity of the wreckage) vi = velocity immediately after the collision (unknown) a = \mumg/m ( m = total mass of two cars) d = given so here a would have a negative sign...

Homework Statement A 870 kg sports car collides into the rear end of a 2500 kg SUV stopped at a red light. The bumpers lock, the brakes are locked, and the two cars skid forward 2.9 m before stopping. The police officer, estimating the coefficient of kinetic friction between tires and road to...

THANKS aimslin 22 for givin positive resp

Homework Statement A giant "egg" explodes as part of a fireworks display. The egg is at rest before the explosion, and after the explosion, it breaks into two pieces, with the masses indicated in the diagram, traveling in opposite directions. Part A What is the momentum PA,i of piece A...

hey how did u get 13.3 g of acetic acid from 0.208 moles provided that the molar mass is 60.5 . since, moles = mass/molar mass therefore , mass = 60.5 * 0.208 = 12.58 grams ? i have an assignment due on this , in the next 3 hrs. please help someone ?