Question

10.A car starts from rest and Rolls down a hill with constant acceleration it travels a distance of 1600 m in 20 seconds. Its acceleration will be (2 Points) 16 m/s2 8m/s2 24m/s2 32m/s2​

Answer 1

Given Information:

A car starts from rest and Rolls down a hill with constant acceleration it travels a distance of 1600 m in 20 seconds. Its acceleration will be

Options:

1. 16m/s²

2. 8m/s²

3. 24m/s²

4. 32m/s²

Solution:

We have,

• Initial velocity(u) = 0m/s
• Time(t) = 20s
• Displacement(s) = 1600m

Using 2nd equation of motion and putting values in the equation, we have,

• s = ut + 1/2 at²
• 1600 = 0 + 1/2 × a × 20²
• 1600 = (400/2)a
• 1600 = 200a
• a = 1600/200
• a = 8m/s² (Option 2) Required Answer