Question

A marble is dropped from rest (at a height of 10.0 m) into a large batch of chocolate chip cookie dough. The marble comes to rest in 0.87 seconds due to a constant upward force of 1.2 N supplied by the cookie dough. Gravity, of course, continues to act during the deceleration. Find the mass of the marble.

Answer 1

v =0 ap t=0.878 Ovo speed of ball when it hit the dough Using third equation V2 = 1; ² + 2gh v² = otagh V = [29h - 12x4.8x10 andra V = 14 m/s Now, if decelleration is a uning first equitin V = Vit at o=V, + at - a - - 0.87 Now, a=f-mg – 1 g 16.09 - 12 - 9.8. Im=0.04637 Kg --16.09 m