A crate is pushed up each of the two ramps shown in the diagram below. Based on the concept that simple machines make work easie
r, and assuming that both ramps are friction less, which statement is true?
Ramp B requires less force than ramp A.
Ramp A requires less force than ramp B.
Ramp B raises the crate higher than ramp A.
Ramp A raises the crate higher than ramp B.
Ramp B requires less force than ramp A.
Ramp A requires less force than ramp B.
Ramp B raises the crate higher than ramp A.
Ramp A raises the crate higher than ramp B.
1 answer:
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F=nmv
where;
n=no. of bullets = 1
m=mass of bullets=2g *10^-3
V=velocity of bullets200m/sec
F=1
loss in Kinetic energy=gain in heat energy
1/2MV^2=MS∆t
let M council M
=1/2V^2=S∆t
M=2g
K.E=MV^2/2
=(2*10^-3)(200)^2/2
2 councils 2
2*10^-3*4*10/2
K.E=40Js
H=mv∆t
(40/4.2)
40Js=40/4.2=mc∆t
40/4.2=2*0.03*∆t
=158.73°C
