A particle at t₁ = -2.0 s is at x₁ = 4.3 cm and at t₂ = 4.5 s is at x₂ = 8.5 cm. What is its average velocity? Can you calculate its average speed from these data?
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- The velocity of an object as a function of time is given by v=3t2+5t-12 m/s, where t is in seconds. If the object has a position x = 8.00 m at t = 2.00 s, what is the position of the object at time t = 5.00 s?Tired, you walk from your house to a local coffee shop to get an espresso. You average a speed of 2.4 m/s on your way there. After your espresso, you decide to run directly back to your starting point with an average speed of 5.6 m/s. Assume you spend 4 minutes at the coffee shop. If your average speed for this entire trip is 1.9 m/s, what is the distance between your house and the coffee shop?A physics teacher walks 5 km East, 2.5 km South, 5 km West, and finally 2.5 km North. The entire motion lasted for 3 hours. Determine the average speed and the average velocity.
- Shown below is a graph of velocity-versus-time for a moving object. The object starts at position x = 0 m at t = 0 s. What is the final position at t = 4.0 s, in meters?Using the following graph and data table please find: horizontal & vertical velocity, and the velocity at 0.155 sec and 0.255 sec (w) x (w) A Time (sec) 0.000 0.033 0.066 0.100 0.133 0.166 0.200 0.233 1.20 1.0 0.8 0.6 0.4 0.2 0 0 0.266 0.300 0.333 0.366 0.400 0.05 0.10 ● x (m) 1.200 1.141 1.079 1.017 0.959 0.899 0.837 0.779 0.717 0.657 0.601 0.546 0.489 0.15 0.20 time (s) 0.25 ... y (m) 1.051 1.040 1.017 0.980 0.933 0.878 0.806 0.730 0.636 0.536 0.416 0.303 0.174 0.30 ● 0.35 ● 0.40A long jumper leaves the ground at an angle of 29 degrees and lands 8.2 meters away. With what speed did he jump? Please answer in m/s