To determine how far the vehicle will travel while braking, use the formula of **1/2 the initial velocity multiplied by the time required to stop**.

## When a car travels at a speed of 10 meters per second square?

When a car driver travelling at a speed of 10 metre per second applies brakes and brings the car to rest in 20 seconds then **retardation will be:a)+2m/second square**.

## When a car driver is travelling with a speed of 10 m/s applies brakes and brings car to rest in 20’s then the retardation will be 22?

When a car driver travelling at a speed of 10 m/s applies brakes and brings the car to rest in 20s then the restardation will be : Select one : a. Negative 0.5 m/s2.

## When a car driver travelling at a speed of 20 m/s applies brakes and brings the car to rest in 40’s then the acceleration will be?

a car driver travelling at speed = 20m/s intial velocity , u = 20 m/she applies brakes and brings the car to rest = 40sso time taken to stop the car = 40swe have to find acceleration . final velocity of car , v= 0 use formula = v=u + at 0 = 20 + a40a= 40 / 20 = **– 1/2 m/ s²**[ hereative sing shows acceleration] .

**How far does the car travel while the brakes are applied? – Related Questions**

## When a car driver Travelling at a speed of 20m s applies brakes then the retardation will be?

we get acceleration is -2 so retardation will be **+2 m/ sec sq**.

## What is the ratio of speed to the magnitude of velocity when the body is moving in one direction?

The displacement of the body in given time is always equal to or less than distance covered, because, velocity is displacement per unit time and speed is distance covered per unit time, therefore, ratio of magnitude of velocity and speed is always **equal to or less than one**.

## What device is used to measure the instantaneous speed of a vehicle?

**speedometer**, instrument that indicates the speed of a vehicle, usually combined with a device known as an odometer that records the distance traveled.

## Which of the following could be a unit of speed?

Unit of speed is **metre/second** denoted by m/s.

## When a car driver Travelling at a speed of 10m s applies brakes and bring the car to rest in 20s then the acceleration will be?

5 m / s – 2 .

## Which of the following is the unit for speed Brainly?

We measure distance in the units of metre (m) or kilometre (km). We measure time in the units of second (s) or hours (h). Hence, the units for measuring the speed are **m/s or km/h**.

## Which of the following is the correct formula for speed?

The formula for speed is **speed = distance ÷ time**.

## What is velocity Science Grade 7?

Velocity **defines the direction of the movement of the body or the object**. Speed is primarily a scalar quantity. Velocity is essentially a vector quantity. It is the rate of change of distance.

## What is the formula for calculating acceleration?

Acceleration (a) is the change in velocity (Δv) over the change in time (Δt), represented by the equation **a = Δv/Δt**. This allows you to measure how fast velocity changes in meters per second squared (m/s^2).

## What is the formula for calculating distance?

To solve for distance use the formula for distance **d = st**, or distance equals speed times time. Rate and speed are similar since they both represent some distance per unit time like miles per hour or kilometers per hour.

## How do you calculate speed example?

A cyclist covers a distance of 15 miles in 2 hours. Calculate his speed. **Speed = Distance/time** = 15/2 = 7.5 miles per hour.

## How do you calculate distance traveled?

If the person is traveling at a constant speed of 3 miles per hour, we can find the distance traveled by multiplying the speed by the amount of time they are walking. So, the person traveled 6 miles in 2 hours.

## How do you calculate speed using distance and time?

To get the distance, **multiply the speed by time**. You may see these equations simplified as s=d/t, where s is speed, d is distance, and t is time. This formula can be arranged into the triangle above. In the triangle, speed and time form the base, as they are what is multiplied together to work out the distance.

## What is formula for time and distance?

The formula for time is given as [**Time = Distance ÷ Speed**]. To calculate the distance, the time formula can be molded as [Distance = Speed × Time].

## How do you calculate car speed per hour?

Speed is **distance divided by the time taken**. For example, a car travels 30 kilometres in 2 hours. Its speed is 30 ÷ 2 = 15km/hr.

## How do you calculate the speed of a car?

The formula for speed and distance is the same for a car as any other object: **distance ÷ time**. So if you want to calculate the speed of a car at sixty miles an hour, the math is (60 x 5280) ÷ (60 x 60) = 88 feet per second.