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1. a space probe is launched vertically into space. it launches from rest and accelerates at a rate of 29 m/s2. how many seconds before the probe reaches the speed required to get into orbit, 7,850 m/s?
2.calculate the acceleration in meters per second-squared, of a car moving at 15 m/s that accelerates to 28 m/s over a time of 5.3 seconds.
3. calculate the acceleration in meters per second-squared, of a car that begins at rest at a stop sign and accelerates to 25 m/s over a time of 8.6 seconds.