📕Paper 1 - Pure and Mech

Question 1

Force exerted when two objects touch

Answer 1

Normal REACTION force

Question 2

Give a reason why the model might not be appropriate for large values of t

Answer 2

Bread may not be sufficient to support the number of bacteria

OR

Bacterial growth may obey different rules for large values of t

Question 3

Tension is same throughout string

Answer 3

Pulleys are smooth & String is light

Question 4

Magnitude of the acceleration of the particles are same

Answer 4

String is inextensible

Question 5

Collinear

Answer 5

Points lying in a straight line

Three points A B and C are said to be collinear if AB—> and AC —>are parallel