# science-urgent(plz help)!!!!

a hockey stick has a mechanical advantage of 4. if the effort arm(which is the distance between the fulcrum and your pushing hand-effort)is 25cm long, how long is the stick? if your hand is pushing at a speed of 20km/h, how fast will the puck move?

1. 👍 0
2. 👎 0
3. 👁 173

## Similar Questions

1. ### Physics

A hockey player's arm and stick form a 1.6 m rigid segment. If the angular speed of the player's arm/stick is 1.2 rad/s, determine the resultant velocity of a motionless puck that is hit struck on if: a) the hockey player is

asked by Tori on November 7, 2013
2. ### Physics`

A field hockey player's arm and stick form a rigid segment. Assuming she hits the ball when the stick is vertical, which of the following would result in the greatest velocity of the end of her stick immediately before she hits

asked by Caitlin on November 25, 2013
3. ### Physics

In using a pulley system,an Effort of 100N is needed to raise steadly a load of 800N.(a)what is the mechanical advantage?(b)if this Effort moves through a distance of 20m and the load is moved up a distance of 2m caculate the

asked by Jessy on March 17, 2019
4. ### physics

A man lifts various loads with the same lever. The distance of the applied force from the fulcrum is 2.00 m and the distance from the fulcrum to the load is 0.500 m. A graph of resistance force vs. effort force is shown. What is

asked by Rachel on March 20, 2013
5. ### physics

a man lifts various loads with the same lever. The distance of the applied force from the fulcrum is 2.50 m and the distance from the fulcrum to the load is 0.500 m. A graph of resistance force vs. effort force is shown. What is

asked by archie on March 9, 2018
6. ### Physics check

So I have an experiment and we have to find the mechanical advantage. 1. What is the MA when the load force is 7N and the effort force is 3N? 2. What is the MA when the load force is 7N and the effort force is 6N? My answer for 1.

asked by Tinatike on November 6, 2011
7. ### Science physics

a machine was used to lift a load of 30N through a distance of 2metres. the effort applied was 10N through a distance of 8metres. calculate the mechanical advantage

asked by Arnold on June 25, 2015
8. ### Science

A pulley system used to lift a load of 9600N using an effort of 2400N through a vertical distance of 20m.1)calculate the mechanical advantage, 2) velocity ratio,3)what is the efficiency of the pulley system, 4) calculate the

asked by Anonymous on December 17, 2019
9. ### Velocity Ratio

Does my work make sense? A turnbuckle is needed to apply an 8kN force on a cable. If the efficiency of the turnbuckle is 40% and the force applied is 159.155N with a lever of 20cm in length. a) Find the mechanical advantage.

asked by Henri on March 20, 2009
10. ### Please check my math

A turnbuckle is needed to apply an 8kN force on a cable. If the efficiency of the turnbuckle is 40% and the force applied is 159.155N with a lever of 20cm in length. a) Find the mechanical advantage. Mechanical

asked by Henri on March 21, 2009

More Similar Questions