Problem 1: A boy exerts a 14 Newton force on his little sister who is in a sled. The sister and sled combined have a mass of 25 Kg. At what rate did they accelerate?

Problem 2: A 2 kg hockey is accelerated by a slap shot force at a rate of 28.9 m/s2. What force is exerted with the stick?

Problem 3: A boy drops a 6.5 kg rock from the top of a tower (that means the object is in free-fall..acceleration due to GRAVITY-what is gravity’s acceleration?). What was the force that the rock will hit the ground with?

Initially, a particle is moving at 5.33 m/s at an angle of 37.9° above the horizontal. two seconds later, its velocity is 6.11 m/s at an angle of 54.2° below the horizontal. what was the particle's average acceleration during these 2.00 seconds in the x-direction (enter first) and the y-direction?

Which is an example of gaining a static charge by conduction? a) rubbing a balloon against your hair. b) shuffling your shoes across a carpet. c) bringing a charged rod near an electroscope. d) touching your car on a cold day and getting a shock.

A3.9 g aluminum foil ball with a charge of +4.1×10−9 c is suspended on a string in a uniform horizontal e⃗ field. the string deviates to the right and makes an angle of 30∘ with the vertical. part a part complete what information about the e⃗ field can you determine for this situation? what information about the field can you determine for this situation? only the magnitude of e⃗ only the direction of e⃗ both the magnitude and the direction of e⃗ none of the above previous answers correct part b determine the magnitude of the electric field. express your answer with the appropriate units. e e = nothing nothing request answer part c determine the direction of the electric field. determine the direction of the electric field. to the right to the left away from you toward you