Scanned with CamScanner
Question 8
(a) Define acceleration.
(2)
(b) A body has an...
Physics, 28.11.2020 15:20 vanessagallegos7445
Scanned with CamScanner
Question 8
(a) Define acceleration.
(2)
(b) A body has an initial velocity u and an acceleration a. Aller a time i the body has moved
a distance s and has a final velocity v. The motion is summarised by the equations
V = U+ al,
klu + v)
(1) State the assumption made about the acceleration a in these equations.
SS
(11) Use the equations to derive an expression for v in terms of a and s.
131
(c) A photographer wishes to check the time for which the shutter on a camera stays open
natoomph in boing token To do this a metal hall is photographed as it falls
Answers: 2
Physics, 21.06.2019 16:20
Groups of organs that work together to complete a process in the body are called: a. cells b. tissues c. nerves d. systems
Answers: 2
Physics, 21.06.2019 19:50
An object is dropped from a tower, 400 ft above the ground. the object's height above ground t seconds after the fall is s(t)equals400 minus 16 t squared. determine the velocity and acceleration of the object the moment it reaches the ground. the velocity of the object the moment it reaches the ground is nothing ft/s.
Answers: 1
Physics, 22.06.2019 05:30
James is trying to prove newton's 2nd law of motion. he tries to move four different objects with different masses, shapes, and sizes from point a to point b. the objects are a toy car, a car, a refrigerator, and a kitchen table. after some experimentation, he finds that force is dependent on the mass of the object, rather than it's size or shape. the object that takes the most force to move is the
Answers: 1
Physics, 22.06.2019 06:00
Which of the following changes will result in a stronger electromagnet? a. using fewer coils of wire b. using a higher voltage c. using a shorter nail d. using a longer wire
Answers: 1
Geography, 01.09.2019 05:50
Mathematics, 01.09.2019 05:50
History, 01.09.2019 05:50
English, 01.09.2019 05:50
Biology, 01.09.2019 05:50
Geography, 01.09.2019 05:50
History, 01.09.2019 05:50
Biology, 01.09.2019 05:50
Mathematics, 01.09.2019 05:50
Chemistry, 01.09.2019 05:50
Physics, 01.09.2019 05:50