A bunch of keys was thrown directly upward by Macoy, who is looking out of the window, to be caught by Len-Len living on a room right above him. Unfortunately, Len-Len wasn't able to catch the keys and therefore the bunch of keys went straight to the ground. If Macoy gave the keys an upward speed of 3 m/s and the keys reached the ground after Macoy threw the keys upward in 4 seconds, a. What is the speed of the keys just before it reached the ground? b. How high is his room from the ground?
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.
A bunch of keys was thrown directly upward by Macoy, who is looking out of the window, to be caught by Len-Len living on a room right above him. Unfortunately, Len-Len wasn't able to catch the keys and therefore the bunch of keys went straight to the ground. If Macoy gave the keys an upward speed of 3 m/s and the keys reached the ground after Macoy threw the keys upward in 4 seconds,
a. What is the speed of the keys just before it reached the ground?
b. How high is his room from the ground?
c. What is the keys' acceleration when it reached its highest point?
d. What is the keys' velocity when it reached its highest point?
NOTE: ANSWER FIRST THE A AND B I WILL POST THE C AND D AFTER YOU ANSWEW THANKS.
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A bunch of keys was thrown directly upward by Macoy, who is looking out of the window, to be caught by Len-Len living on a room right above him. Unfortunately, Len-Len wasn't able to catch the keys and therefore the bunch of keys went straight to the ground. If Macoy gave the keys an upward speed of 3 m/s and the keys reached the ground after Macoy threw the keys upward in 4 seconds,
a. What is the speed of the keys just before it reached the ground?
b. How high is his room from the ground?
c. What is the keys' acceleration when it reached its highest point?
d. What is the keys' velocity when it reached its highest point?
THANK YOU FOR THE ANSWER FOR A AND B. NOW CAN U ANSWER C AND D? THANKS
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