lDlraw an arrow to the fulcrum of each lever. Identify these levers as first, -. .7 ' , second, or third class: A. Shovel ~ ' _ " 7 handle ' . is fulcrum. g B Scissors " I C. Nutcrackerwutput 1s cracking the nuts. E. Hammer (when pulling nails) ' - . F. Stapleriyou push D. Wheelbarrow in the middle. Input or Output Force? Distance of Effort or Distance of Resistance? You use a lever to lift a 45 N rock. The part of the lever that lifts the object. You stand on the end of a lever. The part of the lever you pull on. A lever lifts a 38 N crate. How much you pull down the lever. A lever applies 78 N of force to a car. A block is lifted up 4 cm with a lever. To lift an object you have to apply 8 N of force. You have to pull down 50 cm to lift a rock. A lever has a 36 cm input arm and a 6 cm output arm. Find Which of Newton's Three Laws Applies? MA. To make a skateboard go forward, you push backward. _ You need good tires to help a car go around curves. _ If you want to throw a ball faster, you will need to throw it harder. A lever takes 150 N to lift a 75 N object. Find MA. _ After you hit a hockey puck it glides straight across the ice. A 25 N and 5 N force pull to die right. Friction is 10 N. If the object is 5 kg, nd the net force and acceleration. You have to pull down 15 cm to lift a box 5 cm. Find MA. An 60 kg astronaut throws a 3 kg wrench to the left. The wrench ends up going 10 m/s to the right. Find the velocity of The MA of a lever is 4. If you have to lift the object up 20 cm, the astronaut. how far will you have to pull down