Answer:9.75 m/s
Explanation:
Given
Length of ladder
Foot the ladder is moving away with speed of
From diagram
------1
at
Now differentiating equation 1 w.r.t time
negative indicates distance is decreasing with time
A: Human Body
C is wrong because they don’t have the tools to test it on another planet
Volume of a block can be found by: length × width × height. So:
3.5cm × 2.8cm × 1.6cm = 15.68cm^3
Speed is the same as the initial: 25m/s.
*if* you need vectors though:
final velocity = (25*cos(35), -25*sin(35) ) m/s