GENERAL KNOWLEDGE

GK

PHYSICS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of the following is the formula for finding how fast did the object travel?
A
Speed=d/t
B
Speed=t/d
C
Speed=t x d
D
Speed=d x t
Explanation: 

Detailed explanation-1: -Speed (or rate, r) is a scalar quantity that measures the distance traveled (d) over the change in time (t), represented by the equation r = d/t.

Detailed explanation-2: -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).

Detailed explanation-3: -Speed is simply distance divided by the time where distance is directly proportional to velocity when time is constant.

Detailed explanation-4: -The formula for Speed is given as [Speed = Distance ÷ Time].

Detailed explanation-5: -That is speed = distance ÷ time. Or to put it another way distance divided by speed will give you the time. Provided you know two of the inputs you can work out the third. For example if a car travels for 2 hours and covers 120 miles we can work out speed as 120 ÷ 2 = 60 miles per hour.

There is 1 question to complete.