Basics (Day-1)

A car accelerates uniformly from 10 m/s to 20 m/s in 5 seconds. What is the acceleration?

• 2 m/s²

• 3 m/s²

• 4 m/s²

• 1 m/s²

Answer explanation

A 2 kg block is pushed with a force of 10 N on a frictionless surface. What is the acceleration?

• 5 m/s²

• 10 m/s²

• 20 m/s²

• 2 m/s²

Answer explanation

What is the molecular mass of H₂O?

• 18 g/mol

• 16 g/mol

• 20 g/mol

• 10 g/mol

Answer explanation

Which of the following has the highest pH value?

• Vinegar

• Soap solution

• Distilled water

• Lemon juice

Answer explanation

Solve: (2x−3)(x+5)=0. What are the roots of the equation?

• x = -5, 3/2

• x = 5, -3/2

• x = -3, 5/2

• x = 3, -5

Answer explanation

The derivative of x^2+3x+5 is:

• 2x+3

• x+3

• 2x−3

• x^2

Answer explanation