QUESTION 1 Which one of the following statements is NOT true of a free-falling object? An object in a state of free fall_ O falls with a constant speed of -10 m/s. O falls with a acceleration of -10 m/s/s O falls under the sole influence of gravity O falls with downward acceleration which has a constant magnitude QUESTION 2 As an object freely falls, its O acceleration increases O speed increases O none of these O both of these QUESTION 3 Ten seconds after being dropped from rest, a free-falling object will be moving with a speed of about 10 m/s O about 50 m/s O about 100 m/'s more than 100 m/s QUESTION 4 When a rock is dropped, it will accelerate downward at a rate of 9.8 my's?. If the same rock is thrown downward (instead of being dropped from rest), it acceleration will be __. (Ignore air resistance effects.) less than 9.8 m/s 9.8 m/= more than 9.8 m/32 O none of the aboveQUESTION 5 Determine the acceleration (in m/'s ) of an object which .... 1. moves in a straight line with a constant speed of 20.0 m/'s for 12.0 seconds 2. changes its velocity from 12.1 m/'s to 23.5 m/'s in 7.81 seconds 3. changes its velocity from 0.0 mi/hr to 60.0 mi/hr in 4.20 seconds 4. accelerates from 33.4 m/'s to 18.9 m/'s over a distance of 109 m