Question

A body falls down from rest. What is i displacement in 1s? (g=10 m/s²)

• A. Zero
• B. 20 m
• C. 10 m
• D. 5 m

Answer 1

Answer:

D. 5 m

The displacement of a body under gravity can be calculated using the equation of motion:

Equation of Motion:

s = ut + (1/2)gt²

where:

• s is the displacement

• u is the initial velocity (0 m/s, since the body falls from rest)

• t is the time (1 s)

• g is the acceleration due to gravity (10 m/s²)

Calculation:

Substituting the values into the equation:

s = 0 × 1 + (1/2) × 10 × 1²
= 0 + 5
= 5 m