Question
A body is projected upwards with an initial velocity u .
At the highest point, what is its acceleration? ÂSolution
At the highest point, the body's velocity becomes zero momentarily, but acceleration due to gravity (g) still acts downwards.  Thus, even though speed is zero, acceleration is g downwards throughout the motion.  This is why the body starts falling back after reaching the maximum height.
Onions, broccoli, fresh fruits, milk, eggs, and iodized salt are good sources of _________.
When a metal reacts with dilute hydrochloric acid, it produces:
What is the chemical symbol for Gold?Â
A spring of spring constant 500 N/m is compressed by 5 cm. The potential energy stored is:
Which one of the following statement regarding the sun is correct?Â
A body of mass 4 kg falls freely from a height of 5 m. What is its kinetic energy just before it hits the ground? (Take g = 10m/s²)
What happens when sodium reacts with water?
Which gas is responsible for the ozone layer's depletion?
Humans have _____ lobes in the left lung.
Which of these is not a function of proteins?
