A race track is in the shape of a rectangle with length of 22 metres and area of 2200 m2. A car takes 20 seconds to make one lap around the perimeter of this track. If the car and a person whose speed is 4 m/s, started moving at the same time along the perimeter of the track but in opposite directions, then find the distance between the car and the person, 3 seconds before they cross each other.
Area of the track = length of track x breadth of track = 22 x breadth of track = 2200 So, breadth of track = 2200 ÷ 22 = 100 So, perimeter of the track = (22 + 100) x 2 = 244 metres So, speed of the car = (244/20) = 12.2 m/s Relative speed of the car with respect to the person = 12.2 + 4 = 16.2 m/s So, distance between the car and the person, 3 seconds before they cross each other = 16.2 x 3 = 48.6 metres
What is the objective of the International Millets and Other Ancient Grains Research Initiative (MAHARISHI)?
Name the GHG released from volcanic eruptions, animal respiration, human activities etc.
What is the general average carbon/nitrogen ratio found in soils?
Which is not true for Mycorrhizae Fungi?
Plant strategies like thick cuticles, close stomata, curl leaves are done for
When a company identifies the parts of the market it can serve best and most profitably, it is practicing ________.
Error degree of freedom for RBD involving b blocks and v treatments will be ___
What is used in the preparation of vermicompost?
Chenopodiaceae is the family of:
There are no malphighian tubes present in:
