Need help with Math homework

Sigchi4life
Category:
Physics
Price: $10 USD

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) Daniel C.
(997)
School: University of Virginia
PREMIUM TUTOR
Studypool has helped 1,244,100 students
Ask your homework questions. Receive quality answers!

Type your question here (or upload an image)

1830 tutors are online

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