science
posted by Faith .
What is the magnitude of the average acceleration of a skier who, starting from rest, reaches a speed of 7.1 m/s when going down a slope for 4.0 s?

Average acceleration is given by the expression
(final velocity  initial velocity) / time
Note the use of the word velocity instead of speed, since the direction of the movement is important.
In the case of a skiier going downhill, the direction of the speed does not change, so the average acceleration reduces to:
(7.10 m s^{1})/4s = ? m s^{2}
Respond to this Question
Similar Questions

Physics
What is the magnitude of the average acceleration of a skier who, starting from rest, reaches a speed of 8.0 m/s when going down a slope for 5.0 s? 
Physics
What is the magnitude of the average acceleration of a skier who, starting from rest, reaches a speed of 5.8 m/s when going down a slope for 2.8 s? 
physics
(a) What is the magnitude of the average acceleration of a skier who, starting from rest, reaches a speed of 8.86 m/s when going down a slope for 3.30 s? 
College Physics
(a) What is the magnitude of the average acceleration of a skier who, starting from rest, reaches a speed of 9.62 m/s when going down a slope for 4.00 s? 
physics
What is the magnitude of the average acceleration of a skier who, starting from rest, reaches a speed of 5.59 m/s when going down a slope for 2.79 s? 
physics
(a) What is the magnitude of the average acceleration of a skier who, starting from rest, reaches a speed of 11.3 m/s when going down a slope for 3.72 s? 
gen physics
(a) What is the magnitude of the average acceleration of a skier who, starting from rest, reaches a speed of 8.02 m/s when going down a slope for 4.28 s? 
physics
(a) What is the magnitude of the average acceleration of a skier who, starting from rest, reaches a speed of 8.02 m/s when going down a slope for 4.28 s? 
physics
what is the magnitude of the average acceleration of a skier who starting from rest, reaches a speed of 8.0 m/s when going down a slope for 5.0 sec? 
physics
(a) What is the magnitude of the average acceleration of a skier who, starting from rest, reaches a speed of 10.5 m/s when going down a slope for 3.18 s?