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A 0.10 kg model rocket's engine is designed to deliver an impulse of 6.0 N*s. If the rocket engine burns for 0.75 s, what is the average force does the engine produce?
A bullet travelling at 500 m/s is brought to rest by an impulse of 50 N*s. What is the mass of the bullet?
If the halfback experienced a force of 800 N for 0.9 senconds to the north determine the impulse
A 6kg object travelling at 10m/s collides head on with a 4kg object travelling at 4m/s. Determine the velocity of 10 m/s. Assume that the collisions occur in an isolated island
Matthew and Dylan want to hand in a late assignment to Miss Takken but because she is angry they don’t want to approach her. So they put a plank up to the science room window (height 6 m vertically) and slide the 1.3 kg assignment up to Miss Takken. If the slide will lose 15 % due to friction, with what initial speed must they slide the assignment to just reach Miss Takken’s hand with zero velocity?
Colby, of mass 74 kg, decides to go ziplining down a zipline that is 100 m long on the hypotenuse and declines at an angle of 10°. If he starts from rest at what speed will he land at the bottom if friction can be ignored?
Natalie is an accomplished vampire slayer and is fighting Dracula with gaseous silver. If she starts with 3.89 kg of liquid silver at 1500ºC and wants really hot gaseous silver at 3400ºC, what heat energy must she add to fully heat and vaporize the silver? (Note: the boiling point of liquid silver is 2160ºC)
Maddie, Joel, and Jessica decide to go sledding one day with their 65 kg, 70 kg, and 62 kg masses respectively. Assuming the snow is frictionless, what will the students' speed be at points B and C of the hill if they start from rest from point A and all get on a 2 kg sled together?
Mention two examples of forces that are experienced by contact
State the two effect of force on a stationary object
