Just need some explanation on 3 questions.
1) An 80kg skier slides on waxed skis along a horizontal surface of snow at constant velocity while pushing his poles. What is the horizontal component of force?
2)The Weight of a chicken egg is (in Newtons)?
3) An object with mass of 0.5kg starts from rest and achieves a maximum speed of 20m in 0.01 s. What average unbalanced force accelerates this object.
Answers.
1) 0.05N
2) 100N (10^2N)
3) 0.1N
1) An 80kg skier slides on waxed skis along a horizontal surface of snow at constant velocity while pushing his poles. What is the horizontal component of force?
2)The Weight of a chicken egg is (in Newtons)?
3) An object with mass of 0.5kg starts from rest and achieves a maximum speed of 20m in 0.01 s. What average unbalanced force accelerates this object.
Answers.
1) 0.05N
2) 100N (10^2N)
3) 0.1N