Question
Two cars A and B are running at velocities of 60km per
hour and 45 km per hour. What is the relative velocity of car A with respect to car B, if both are moving eastwards?Solution
Relative velocity is the vector difference between velocities of two bodies. If two bodies are moving in the same direction then relative velocity is given by their difference If two bodies are moving in the opposite direction we sum up their velocities. It means that one moving in the opposite direction is negative velocity and the other one is positive velocity. Positive and negative sign indicates the direction. Since, both are moving Eastwards A = +60 km /h B = +45 km / h Relative speed = 60 - 45 = 15 km / h
In the context of system analysis, which of the following best defines the "use case" diagram?
Which of the following types of testing is typically conducted by end-users to verify that the developed software meets their requirements?
In a data warehouse, which of the following best describes the concept of "data granularity"?
Which of the following is true about triggers in a relational database?
Consider the following stack operations. What will be the content of the stack after executing all the operations?
Stackstack = new Stack... Which encryption technique is used in Transport Layer Security (TLS) to securely establish a session key?
Which type of database key is a candidate key that has not been chosen as the primary key?
Which of the following scenarios violates Boyce-Codd Normal Form (BCNF) in a relational schema?
Which of the following is an example of Polymorphism in Object-Oriented Programming?
Which testing type evaluates internal code logic and control flow?
Relevant for Exams:
