## Example Questions

Q#1: Displacement

Look at the picture given below. An object moves from point A through B, C, D, E and stops at point F.

a) Find final displacement.

b) Find distance taken from point A to D.

Look at the picture given below. An object moves from point A through B, C, D, E and stops at point F.

a) Find final displacement.

b) Find distance taken from point A to D.

**Solutions:**

**a)**We find final displacement by drawing straight line from point A to final point F. As you can see from the graph, object changes its position 8m.

Displacement = Final poisition - Initial position

Displacement = 10m - 2m = 8m

**b)**We find distance taken by object;

A to B = 10 - 2 = 8m

B to C = 10 - 2 = 8m

C to D = 10 - 6 = 4m

Total distance taken from point A to D is = 8m + 8m + 4m = 20m

Q#2: Speed, Velocity, and Acceleration

A hitman has been stalking his target for days in his car. He was grabbing a burger at a diner when he say his target speeding by in a car at 100 km/hr. Assuming it takes the hitman 10 seconds to get to his car and chase while accelerating from rest. At what rate doesnt he have to accelerate to catch up with his target before he turns into an alley 1 km away?

A hitman has been stalking his target for days in his car. He was grabbing a burger at a diner when he say his target speeding by in a car at 100 km/hr. Assuming it takes the hitman 10 seconds to get to his car and chase while accelerating from rest. At what rate doesnt he have to accelerate to catch up with his target before he turns into an alley 1 km away?

**Solutions:**Q#3: Relative Motion

A plane travels at 700 km/hr from North due South. There is a gust of wind blowing at 20 m/s uniformly from East due West. After 4 hours of travel, how far is the plane from its original position? And how far has it veered from it's original path?

A plane travels at 700 km/hr from North due South. There is a gust of wind blowing at 20 m/s uniformly from East due West. After 4 hours of travel, how far is the plane from its original position? And how far has it veered from it's original path?

**Solutions:**