Question

PLEASE HELP ASAP

When a 1.8-kilogram cart moving with a speed of 1.9 meter per second on a horizontal surface collided with a second 1.8-kilogram cart initially at rest, the carts lock together. what is the speed of the combined carts after the collision? Round your answer to two decimal places. Enter only a number in the blank

Answer 1

The speed of combined carts is 0.95 m/s.

Step-by-step explanation:

When 2 objects stick together after collision, it is an inelastic collision. The the formula is m1u1 + m2u2 = v(m1 + m2) where m is mass of an object, u is initial velocity and v is final velocity :

`m1u1 + m2u2 = v(m1 + m2)`

`(1.8 * 1.9) + (1.8 * 0) = v(1.8 + 1.8)`

`3.42 = 3.6v`

`v = 3.42 / 3.6`

`v = 0.95 m {s}^( - 1)`