3. A stone is dropped from an airplane at a height of 490 m and it strikes the ground in 10.0 s. At what rate does gravity accelerate the stone?

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Given the position vector of the particle r(t)=(t+1)i+(t^2−1)j+2t k, find the particle's velocity and acceleration vectors at t=1

The ph is the a. independent variable b. the dependent variable c. control group

In a system with only a single force acting upon a body, what is the relationship between the change in kinetic energy and the work done by the force? answers: work is equal to the change in kinetic energy. work depends on the square of the change in potential energy. work is equal to the negative of the change in kinetic energy. work is equal to the square of the change in kinetic energy