Concept explainers
Check Your Understanding If the two golf shots in Example 4.9 were bunched at the same speed, which shot would have the greatest range?
When we speak of the range of a projectile on level ground, we assume
Figure 4.17 Projectile to satellite. In each case shown here, a projectile is launched from a very high tower to avoid air resistance. With increasing initial speed, the range increases and becomes longer than t would be on level ground because Earth curves away beneath its path. With a speed of 8000 m/s, orbit is achieved.
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