You were playing POP POP crackers with your neighbor's kids. To show off your speed, you threw a POP POP cracker at an initial speed of 7.0 m/s downward. The height above ground where you let go of the cracker was about 1.0 m. The cracker popped upon impact with the ground. How long did the kids have between the throw (you let go of the cracker at its initial speed) and the pop (the cracker impacts the ground) to cover their ears and scream? You can assume the final position to be zero. The cracker has negligible amount of air drag. Hint: the cracker has a downward initial velocity. Please include enough significant figures (3 sig. figs.) to ensure your answer is within 5% of the correct answer.
Displacement, Velocity and Acceleration
In classical mechanics, kinematics deals with the motion of a particle. It deals only with the position, velocity, acceleration, and displacement of a particle. It has no concern about the source of motion.
Linear Displacement
The term "displacement" refers to when something shifts away from its original "location," and "linear" refers to a straight line. As a result, “Linear Displacement” can be described as the movement of an object in a straight line along a single axis, for example, from side to side or up and down. Non-contact sensors such as LVDTs and other linear location sensors can calculate linear displacement. Non-contact sensors such as LVDTs and other linear location sensors can calculate linear displacement. Linear displacement is usually measured in millimeters or inches and may be positive or negative.
You were playing POP POP crackers with your neighbor's kids. To show off your speed, you threw a POP POP cracker at an initial speed of 7.0 m/s downward. The height above ground where you let go of the cracker was about 1.0 m. The cracker popped upon impact with the ground. How long did the kids have between the throw (you let go of the cracker at its initial speed) and the pop (the cracker impacts the ground) to cover their ears and scream?
You can assume the final position to be zero. The cracker has negligible amount of air drag.
Hint: the cracker has a downward initial velocity.
Please include enough significant figures (3 sig. figs.) to ensure your answer is within 5% of the correct answer.
Trending now
This is a popular solution!
Step by step
Solved in 3 steps with 2 images
