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.

Answer 1

hi mate

here is your answer

The speed of the keys with

respect to the ground is given by:

V (k - g) = V (k - s) + V (s - g)

Where,

V(k-s) : Speed of the keys with respect to the skater

V(s-g) : Speed of the skater compared to the ground

Substituting values in the equation we have:

V (k - g) = 8 + 14

V (k - g) = 22 km/h

Answer:

The speed of the keys relative to the ground is 22 km / h.

hope it helped❤✌

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