. 4. An object travels at a constant speed of 10m/s for 10s. During the next 5s, it accelerates uniformly to 20m/s. 20 speed m/s 16 What is the total distance travelled by the object? ​

In all trials, the magnitude of the final velocity for g1 + g2 was less than the magnitude of any initial velocity. as mass increased, what happened to the velocity? the velocity decreased. the velocity increased. the velocity of g1 + g2 could not be measured. the velocity was not affected by the mass increase.

Awater slide of length l has a vertical drop of h. abby's mass is m. an average friction force of magnitude f opposes her motion. she starts down the slide at initial speed vi. use work-energy ideas to develop an expression for her speed at the bottom of the slide. then evaluate your result using unit analysis and limiting case analysis. express your answer in terms of the variables h, m, l, vi, f and appropriate constants. vf v f

For waves in the ocean, the medium of the waves is a. air b. water c. energy d. a passing boat