Describe the effect of the amplitude on the velocity of the pulse!???
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Answer:
a) The net force acting on the sleigh is zero because it is moving at a constant speed.
b) , then
.
The initial velocity of Ms. Stafford is 
, while her acceleration is
This is a uniform accelerated motion, so we can calculate the total distance travelled by Ms. Stafford in a time of
using the law of motion for a uniform accelerated motion:
This is a uniform accelerated motion, so we can calculate the total distance travelled by Ms. Stafford in a time of