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Owen and Dina are at rest in frame $\mathrm{S}^{\prime}$ , which is moving with a speed of 0.600$c$ with respect to frame $\mathrm{S}$ . They play a game of catch while Ed, at rest in frame $\mathrm{S}$ , watches the action (Fig. P26.45) . Owen throws the ball to Dina with a speed of 0.800 $c$ (according to Owen) and their separation (measured in $\mathrm{S}^{\prime} )$ is equal to $1.80 \times 10^{12} \mathrm{m} .$ (a) According to Dina, how fast is the ball moving? (b) According to Dina, what time interval is required for the ball to reach her? According to Ed, (c) how far apart are Owen and Dina, and (d) how fast is the ball moving?

a) $-0.800 c$

b) $7.50 \times 10^{3} s$

c) $1.44 \times 10^{12} m$

d) $-0.385 c$

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