Ch2_1
 
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Make sure to calculate your answers in SI units unless specified otherwise .

1) An object travels from a position x= cm to x= cm with an average velocity of m/s. How many seconds does the trip last (see sheet 3 , 3')?

2)The position vs time graph of an object moving with constant speed is described by x = t with position x and time t in SI units. Give the value of the constant velocity in SI units. Indicate with a negative (positive) sign of your result whether the average velocity in this case is equal (is not equal) to the instantaneous velocity (see sheets 5).
3) The position x of an object as a function of time is given as x = 3 + t + t2. All quantities are understood to be quoted in SI units. Calculate the position of the object at s (see sheet 7).
4) The position x of an object as a function of time is given as x = 3 + t + t2. All quantities are understood to be quoted in SI units. Calculate the instantaneous velocity of the object at s (see sheets 5,click 5'',6,9, see sheet 7 in the calculus chapter).
5) An object moves for s with an average acceleration of m/s2. What is the change in velocity (see sheet 11) ?
6) An object moves with constant acceleration of m/s2 for s and reaches a final velocity of m/s. What was its initial velocity (see sheet 13) ?

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