# What is the speed of a car is 72 km per hour express 18 meters per second?

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## What is the speed of a car is 72 km per hour express 18 meters per second?

72Km/hr = 72×5/18 = 20 m/s.

## What is a car moving with 72 km per hour convert speed in meters per second?

The correct answer is 20 m/s. 72 Km/hr = 72 x 1000/3600 = 20 m/s. So the converted velocity is 20 m/s.

## What is the required stopping distance of a vehicle with a speed of 70 km per hour?

Speed | Reaction distance | Total stopping distance |
---|---|---|

70km/h | 29m |
56m |

80km/h | 33m | 69m |

90km/h | 38m | 83m |

100km/h | 42m | 98m |

## Why is a car moving on a level road at a constant velocity considered to be in equilibrium?

A car moving at a constant speed (uniform motion) has all forces acting on it balanced. In this case, the two backward forces (air resistance and friction) perfectly balance the applied force of the wheels on the road in the opposite direction.

## How to convert 18 km per minute into metre per second?

So,18kmmin−1=18×100060=300 m/s.

## What is the speed of a car that traveled a total of 75 km in 1.5 hours?

75km ÷ 1.5hrs = 50 km/hr North 2.

## What is the speed of a car moving at 50 km per hour returns on the same route with a speed of 40km hr?

Average speed=1+1(1/50)+(1/40)=44.44m/s.

## What is the velocity of a car increases from 54 km per hour to 72 km per hour?

The velocity of a car increase from 54 km/hr to 72 km/hr. How much is the work done if the mass of the car is 1500 kg ? (Ans. : 131250 J)

## What is a car moving with a speed of 72 km h is brought to rest in 10 seconds by applying brakes?

Answer: The retardation is 2m/s² and the distance traveled by a car after applying brakes is 100m.

## What is the stopping distance at 70?

Your brakes can only decelerate your car by a certain amount per second, so the faster you’re going, the longer it takes to stop. Because of this, the typical stopping distance at 70mph is 96 metres, while the stopping distance at 50mph is 53 metres, little more than half as much.

## What is the braking distance at 70?

Speed | Perception/Reaction Distance | Braking Distance |
---|---|---|

40 mph | 59 feet | 80 feet |

50 mph | 73 feet | 125 feet |

60 mph | 88 feet | 180 feet |

70 mph | 103 feet |
245 feet |

## What is the formula for calculating brakes?

This formula means that the stopping distance is directly proportional to the square of the speed of the car at the instant the brakes are applied. That is, d ∝ u2 . d = ku2 , where the constant of proportionality k depends on the units being used.

## Is inertia a force in physics?

## What is the formula for net force?

The net force can be calculated using Newton’s second law, which states that F = ma, where: F is the net force. m is the mass of the object. a is acceleration.

## How to calculate 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 velocity of a car is 18 meters per second?

Thus, the speed of the car is 64.8 km/hr.

## How do you find the speed of a car in meters per second?

The formula for speed is speed = distance ÷ time. To work out what the units are for speed, you need to know the units for distance and time. In this example, distance is in metres (m) and time is in seconds (s), so the units will be in metres per second (m/s).

## How do you convert km h to m sec?

1(kilometer/hour) = 1000(meters) / 3600(seconds) can also be expressed as 1(kilometer/hour) = 5/18 (meters/second), which is its simplified form. To convert km/h to m/s, directly multiply the given value of speed by the fraction 5/18.

## How do you calculate the speed of a car in km h?

Speed is distance divided by time. Simply put, if you drove 60 kilometres for one hour, it would look like this: Speed = distance (60 km) / time (1 hour) = 60km/h.