A firecracker in a coconut blows the coconut into three pieces. Two pieces of equal mass fly off south and west, perpendicular to each other, at 17 m/s. The third piece has twice the mass as the other two. Part 1
What is the speed of the third piece?Part 2
What is the direction of the third piece?

12.02 m/s north of east

Explanation:

Let be the horizontal and vertical velocity of the 3rd piece, positive in the East and North direction. Also let m be the mass of the 2 smaller pieces, so 2m is the mass of the 3rd piece.

We can solve for the 2 velocities components using law of momentum conservation. Before the explosion, the total momentum was 0 because the coconut was at rest. After the explosion:

-In the x direction:  

negative 17 because 1 piece flew west

-In the y direction

negative 17 because 1 piece flew south

So the speed and direction of the 3rd piece is

north of east

you go to your settings preference and in the end youll see sth that says "i want to delete my acc" click on it and u'll acc will be deleted but u have to wait.

force is mass*acceleration.

we have a very small mass: 11.4*0.001 kg

if we want 0.035n of force, we need an acceleration:

0.035 = 11.4*0.001*a

a = 0.035/(11.4*0.001) m/s^2