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Xavier is roller skating at 14 km/h and tosses a set of ke
relative to the ground is
km/h.

Sagot :

fichoh

Complete 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:

22 km/hr

Explanation:

Speed of keys with respect to ground ; V(k - g)

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

Speed of skater with respect to ground ; V(s - g)

V(s - g) = 8 km/hr

V(k - s) = 14 km/hr

Substituting the values into the equation :

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

V(k - g) = 8km/hr + 14km/hr

V(k - g) = 22 km/hr

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