# Conservation of linear momentum

A 0.300 kg puck, initially at rest on a horizontal, frictionless surface, is struck by a 0.200 kg puck moving initially along the x axis with a speed of 2.00 m/s. After the collision, the 0.200 kg puck has a speed of 1.00 m/s at an angle of = 54.0Â° to the positive x axis (Fig. 8.10).

Figure 8.10.

(a) Determine the speed of the 0.300 kg puck after the collision.

m/s

(b) Find the fraction of kinetic energy lost in the collision.

https://brainmass.com/physics/conservation-of-energy/conservation-linear-momentum-41222

#### Solution Preview

A 0.300 kg puck, initially at rest on a horizontal, frictionless surface, is struck by a 0.200 kg puck moving initially along the x axis with a speed of 2.00 m/s. After the collision, the 0.200 kg puck has a speed of 1.00 m/s at an angle ofÃ‚ Ã‚ = 54.0Â° to the positive x axis (Fig. 8.10).

Figure 8.10.

(a) Determine the speed of the 0.300 kg puck after the ...

#### Solution Summary

The expert calculates the speed of puck after collision and fraction of kinetic energy lost in the collision.