An object is found to be moving toward the sun at a rate of 2.39 × 104 m/s. it will take 1.5 hours to reach the sun, and its average acceleration will be 12 m/s2. what will its final velocity be when it collides with the sun's surface?

The object is moving by uniform accelerated motion, so its velocity as a function of time is given by

where  is the initial velocity of the object,  is its acceleration and t is the time.

The object reaches the Sun after a time t=1.5 h, which corresponds to (keeping in mind that 1 h=3600 s)

So, the velocity of the object when it reaches the Sun is

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