Question

Last solution please

Answer 1

Answer:

Q1. An object is said to be in motion if its position changes with time whereas it is said to be at rest when it doesn't change its position with time.

Q2. because we are all. moving with it at the same constant speed.

Q3. Magnitude of anything means the value of that thing.

for eg. 5km : here 5 is the magnitude

point from where motion or rest of any object is decided or compared.

Q4. Distance : the actual length of the path travelled.

disp; the perpendicular distance from initial to final point.

distance is scalar. displacement is vector.

distance can't be zero . displacement can be zero.

distance can't be negative . displacement can be.

Q5.Speed = distance / time = 10/4 m/s

time given : 2min 20s = 140s

distance travelled = speed × time = 350m

10 must be added for 350 to become divisible by 4.

therefore the farmer is on the third vertex.

displacement = 10m