Acar drives carrying a flag of width w=0.5m. when the flag goes through a photogate, it blocks and unblocks a light. if the average speed of the car is 20m/s, what is the photogate time interval in seconds?

width of the flag is given as

speed of the car will be

now the time to cross the photogate by the flag is given as

so the time interval will be 0.025 s

the focus of lesson 1 is newton's first law of motion - sometimes referred to as the law of inertia. newton's first law of motion is often stated as. an object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force.

explanation:

frequency or wavelenth of em radiation in a vacuum