Question

xavier is roller - skating at 14 km/h and tosses a set of keys forward on the ground at 8 km/h. the speed of the keys relative to the ground is km/h.

Explanation:

Step1: Analyze key - motion

The keys are tossed on the ground and come to rest.

Step2: Determine speed relative to ground

When at rest relative to ground, speed is 0 km/h.

Answer:

0