General Physics Questions And Answers, Set 17

 

General Physics Questions And Answers

Q1. 

Multiplying 2î + 7ĵ by 5 gives ______

Answer :  

10î + 35ĵ

Q2. 

A car travels 5m in X direction and then 7m in Y direction. What is the final vector position of the car with respect to the origin?

Answer :  

5î + 7ĵ

Q3. 

The vector obtained by addition of two vectors is termed as ______

Answer :  

Resultant vector

Q4. 

A ball tied at the end of a perfect string tied tightly (assume fixed) to a wooden bar at the other end is rotating with constant angular velocity. Its tangential velocity will _______

Answer :  

Decrease with time

Q5.

Two forces are acting on a body. For the body to remain in equilibrium, the forces have to be ____

Answer :  

Equal in magnitude and opposite in direction

Q6. 

Three forces act on a body. Two of them are 7î – 13ĵN and 2î – 11ĵ. What is the value of the other force?

Answer :  

-9î + 24ĵ

Q7.

A variable mass body with an initial mass of 5 kg is moving with a velocity of 5 m/s initially, after some time the velocity increases to 10 m/s, what is the new mass if the body is moving in the absence of any external force?

Answer :  

2.5 Kg

Q8. 

The forces involved in Newton’s third law act ____

Answer :  

On different objects

Q9. 

Unit of force is _____

Answer :  

Newton

Q10. 

Passengers sitting in a stationary car experience a jerk when the car suddenly starts. This is due to _____

Answer :  

Inertia of rest

🎕🎕🎕

⮞General Physics Questions And Answers, Set 16[PREV]

⮞General Physics Questions And Answers, Set 18[NEXT]

🎕🎕🎕