Question

A car travelling eastward at 30m/s suddenly comes to a half in 5s. find its average acceleration​

Answer 1

Explanation:

Chapter 2

Motion Along a Straight Line:

The motion of a particle along a straight line at a constant acceleration is called the "Uniformly Accelerated Motion."

In this chapter, we need to first define velocity and acceleration as was done in Chapter 1.

Velocity: Velocity is defined as the change in displacement per unit of time. Note that both velocity and displacement are vector quantities. Speed is defined as the change in distance per unit of time. Here both speed and distance are scalar quantities. The average speed v is mathematically shown as:

Δ pronounced "delta" means a change. For example, Δx means a change in distance and Δt means a change in time. Δ also means "final - initial."

Δx = x2 - x1 and Δt = t2 - t1.

Example 1: A car travels a distance of 350 miles in 5.0 hours. Find its average

Answer 2

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