- 1 A Spring Is Used To Launch An 0 2kg Block Across A Rough Horizontal Table The Block Comes To Rest After Sliding 1 2m 1 (113.89 KiB) Viewed 35 times
1. A spring is used to launch an 0.2kg block across a rough horizontal table. The block comes to rest after sliding 1.2m
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1. A spring is used to launch an 0.2kg block across a rough horizontal table. The block comes to rest after sliding 1.2m
1. A spring is used to launch an 0.2kg block across a rough horizontal table. The block comes to rest after sliding 1.2m. If the spring has constant k=500N/m and was initially compressed 0.03m, what is the force of friction acting on the block as it slides? 2. A 1.2kg brick is dropped from 1.2m on to a mattress. Model the mattress as a spring with constant k=70N/m. If air resistance does 20J of work as the brick falls, how far is the mattress spring compressed when it lands? How fast was the brick going just before it hit the mattress?