Answered step by step
Verified Expert Solution
Question
1 Approved Answer
Question 1 (5 points) Vector '7' is at a 61 angle and has a magnitude of 85. Describe this vector using vector notation. (Use the
Question 1 (5 points) Vector '7' is at a 61 angle and has a magnitude of 85. Describe this vector using vector notation. (Use the frand 3? symbols.) (5 points) Question 2 (1 5 points) You fire a bullet into a 2 kg wooden block that is hanging at the bottom of a pendulum. When the bullet strikes the block, the pendulum swings upward. The bullet has a mass of 0.02 kg and strikes the block with a speed of 300 me. a. What is the speed of the block and bullet when theyr first start moving together? (8 points)| b. What is the maximum height reached by the pendulum? (7 points) Question 3 (1 0 points) You are trying to push a 30 kg canoe across a beach to get it to a lake. Initially, the canoe is at rest, and you exert a force over a distance of 3 m until it has a speed of 1.2 mxs. a. How much work was done on the canoe? (2 points) b. The coefficient of kinetic friction between the canoe and the beach is 0.2. How much work was done by friction on the canoe? (3 points) c. How much work did you perform on the canoe? (3 points) d. What force did you apply to the canoe? (2 points) Question 4 (1 0 points) A stuntman drives a car of mass 1125 kg east with a speed of 20 m/s. a. If the car accelerates at a rate of 2 mfsz, how long will it take the car to go 50 m? {3 points) b. The stuntman drives the car off an 80 m cliff while going 15 m/s. How long will it take the car to land? (3 points) 0. How far horizontally from the cliff will the ear land? (4 points)
Step by Step Solution
There are 3 Steps involved in it
Step: 1
Get Instant Access to Expert-Tailored Solutions
See step-by-step solutions with expert insights and AI powered tools for academic success
Step: 2
Step: 3
Ace Your Homework with AI
Get the answers you need in no time with our AI-driven, step-by-step assistance
Get Started