# You throw a 4kg rock directly down at 6m/s from the top of a 18m cliff.

Anonymous

Question description

You throw a 4kg rock directly down at 6m/s from the top of a 18m cliff. Calculate the:
a) initial potential energy of the rock
b) initial kinetic energy of the rock
c) speed of the rock when it is 13m above the ground (fell 5m)
d) speed the rock will hit the ground
e) distance the rock is driven into the mud if the mud exerts a steady upwards force of 4000N
f) speed the rock hits the ground if the rock is initially thrown upwards at 6m/s

(Top Tutor) Studypool Tutor
School: UC Berkeley
Studypool has helped 1,244,100 students
flag Report DMCA

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