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Q1. At the closest point, Mars and Earth are 34.60 million miles apart. If a spaceship is travelling at 0.9 c, how much less time has elapsed for the person on the spaceship that travels to Mars and back than for someone who remains on Earth?

Q2. A golfer takes two putts to get his ball into the hole once he is on green. The first putt displaces the ball into the ball 6.7 m east, and the second 2.16 m south. What displacement would have been needed to get the ball into the hole on first putt?

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Category:- Physics
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