2. If the ball rolls without slipping on a horizontal surface, determine the velocity and acceleration of points A and B at this instant. A 0.15 m @= 6 rad/s α = 4 rad/s² B

4. An airplane initially at rest accelerates at 4.5 m/s² down a runway. It reaches a velocity of 33 m/s before it lifts off the ground. a. How much time does the airplane spend on the runway before taking off? gintarit no1 Inemsonigy insod mot avhh limm om bas boos qia o rot ylipalay agstovsods bas busbe ogsnove ori bait b. Find the distance the airplane travels before it lifts off.

PLs help me answer this asap

1 A SPHERICAL PORCELAIN BALL, WITH RADIUS R, IS DROPPED WITHOUT INITIAL VELOCITY IN A TEST TUBE CONTAINING GLYCERIN. DURING FALL, THE BALL IS SUBJECT TO THE FOLLO... A spherical porcelain ball, with radius r, is dropped without initial velocity in a test tube containing glycerin. During fall, the ball is subject to the following forces: P its weight; A the thrust of Archimedes; fluid friction force f = k v with k = 6 πrn; n: viscosity (Pa s) of Glycerin, V, velocity Density of Glycerin pg= 1.3 g/mL; density of porcelain pp = 2.3 g/mL; r ball radius= 1.0 cm; n = 1.0 s.Pa; g = 10 N/kg; volume of a sphere V = 4/3 πr³. The speed limit (in m/s) is: 0.11 0.22 0.44 0.33 0.55