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puteri [66]
3 years ago
11

A student practicing for a cross country meet runs 250 m in 30 s. What is her average speed?

Physics
2 answers:
Novay_Z [31]3 years ago
6 0
It's 8.3 m per second
a_sh-v [17]3 years ago
5 0
Just divide it... and you get the answer
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3 years ago
As you take your leisurely tour through the solar system, you come across a 1.45 kg rock that was ejected from a collision of as
nikklg [1K]

Answer:

1.3310\times 10^8 m/s is the rock's speed.

Explanation:

Momentum is defined as motion possessed by the moving body's mass. Mathematically it a product of mas and velocity of the body.

Momentum(P)=Mass(m)\times velocity(v)

Given : Mass of rock = m = 1.45 kg

Velocity of the rock = v

Momentum of the rock = P =1.93\times 10^8 kg m/s

1.93\times 10^8 kg m/s=1.45 kg\times v

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