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I need help on these problems. Thank You.

1. A particle moves according to the equation

x = (10 m=s*s) t*t where x is in meters and t is

in seconds.

a. Find the average velocity for the time in-

terval from t1 = 2:38 s to t2 = 3:36 s. Answer

in units of m=s.

b.Find the average velocity for the time interval

from t1 = 2:38 s to t3 = 2:48 s. Answer in

units of m=s.

2. Consider the acceleration of gravity to be

10 m/s*s :

a. What is the magnitude of the instantaneous

velocity (speed) of a freely falling object 38 s

after it is released from a position of rest?

Answer in units of m/s.

b. What is its average speed during this 38 s

interval? Answer in units of m/s.

c. How far will it fall during this time? Answer

in units of m.

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# Homework Help: Homework help please

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