Consider motion in one dimension. (The sign of the vector quantities is their di

Question

Consider motion in one dimension. (The sign of the vector quantities is their direction indicator.) An object moves in the positive x-direction with speed 3.1 m/s for 3.1 s. It stops for 3.4 s and then moves in the negative x direction with speed 2.6 m/s for 3.3 s. What is the displacement of this object in units of meter? Enter a number with two digits behind the decimal point. Consider motion in one dimension. (The sign of the vector quantities is their direction indicator.) An object moves in the positive x-direction with speed 8.4 m/s for 2.9 s. It stops for 3.9 s and then moves in the negative x direction with speed 1.4 m/s for 4.1 s. What is the average velocity of this object in units of m/s? Enter a number with two digits behind the decimal point.

Explanation / Answer

Question 2) Displacement is defined as the shortest distance between two given points

Towards +ve x axis distance travelled

= Speed*time

= 3.1*3.1

= 9.61 m

Distance traveled towards -ve x axis

= 2.6*3.3

= 8.58 m

So the displacement from the initial position

= 9.61 - 8.58

= 1.03 m

Therefore displacement of object = 1.03 metres

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