Comm peu du verucily:
7. how long would it take a leopard running at 9 m/s to cover 32m?

3.6 s

Explanation:

The leopard is moving by uniform motion (constant velocity), therefore we can use the equation

where

v is the speed of the leopard

d is the distance covered

t is the time taken

Here we have:

v = 9 m/s is the speed

d = 32 m is the distance that the leopard has to cover

Solving for t, we find the time needed for the leopard to cover the 32 m:

diagram is missing, but i will try to explain your doubt.

answer:

amplitude is the maximum displacement or distance moved on a point of a vibrating body or wave measured from its equilibrium position.it is equal to half the length of vibration path.

the answer is a. at the equator