Need help with Math homework

timer Asked: Oct 29th, 2015

Question description

1. A dog runs down his driveway with an initial speed of 5.5 m/s for 8.4 seconds, then uniformely increases his speed to 10 m/s in 5 seconds. How far did he travel in meters during the first 8.4 seconds?

2. A dog runs down his driveway with an initial speed of 7.1 m/s for 8 s, then uniformly increases his speed to 10.3 m/s in 5.8 s. 

What was his acceleration (in m/s2) during the 2nd part of the motion?

3. A physics student skis down a hill, accelerating at a constant 1.1 m/s2. If it takes her 11.7 s to reach the bottom, what is the length (in meters) of the slope?

4. A mountain goat starts a rock slide and the rocks crash down the slope 90.5 m. If the rocks reach the bottom in 6.2 s, what is their acceleration (in m/s2)?

5. A skateboarder starts from rest at the top of a ramp and accelerates down it at a rate of 4.5 m/s2.  If it takes 3 seconds to get to the bottom of the ramp, how fast (in m/s) will he be going at the bottom?

Tutor Answer

(Top Tutor) Studypool Tutor
School: UT Austin
Studypool has helped 1,244,100 students
flag Report DMCA
Similar Questions
Hot Questions
Related Tags
Study Guides

Brown University

1271 Tutors

California Institute of Technology

2131 Tutors

Carnegie Mellon University

982 Tutors

Columbia University

1256 Tutors

Dartmouth University

2113 Tutors

Emory University

2279 Tutors

Harvard University

599 Tutors

Massachusetts Institute of Technology

2319 Tutors

New York University

1645 Tutors

Notre Dam University

1911 Tutors

Oklahoma University

2122 Tutors

Pennsylvania State University

932 Tutors

Princeton University

1211 Tutors

Stanford University

983 Tutors

University of California

1282 Tutors

Oxford University

123 Tutors

Yale University

2325 Tutors