Q1/ Two forces F1 and F2 act on a 5.00-kg object. If F1=20.0 N and
F2=15.0 N, find the accelerations in (a) and (b) as represented in the
Figure bellow
Q2/ A 1.5 kg book is sliding a long a rough horizontal surface. At point
A is moving at 3.21 m/s and at point B it has slowed to 1.25 m/s
A) How much work was done on the book between A and B.
B) If -0.75J of work is done on the book from B to C, how fast
is it moving at point C.
C) How fast would it be moving at C if +0.75J work were don it
from B to C?
Q3/ A gun fires 8 bullets per second into a target X. If the mass of each
bullet is 3 g and its speed 600 m/s. Then, calculate the power
delivered by the bullets.
Q4/ A box is pulled with a force of 25 N to produce a displacement of
15 m. If the angle between the force and displacement is 30o
, find the
work done by the force
HOMEWORK – PHY103
Q5/ A block of mass 2.50 kg is pushed 2.20 m along a frictionless horizontal table
by a constant 16.0-N force directed 25.0deg below the horizontal. Determine the work
done on the block by
(a) the applied force
(b) the normal force exerted by the table
(c) the gravitational force.
(d) Determine the total work done on the block.
Q6/ A 70 kg astronaut throws a 5kg ball with a velocity of 20m/s east. What is the
velocity of the astronaut?Q1/ Two forces F_(1) and F_(2) act on a 5.00-kg object. If F_(1)=20.0N and
F_(2)=15.0N, find the accelerations in (a) and (b) as represented in the
Figure bellow
Q2/ A 1.5kg book is sliding a long a rough horizontal surface. At point
A is moving at 3.21(m)/(s) and at point B it has slowed to 1.25(m)/(s)
A) How much work was done on the book between A and B.
B) If -0.75J of work is done on the book from B to C, how fast
is it moving at point C.
C) How fast would it be moving at C if +0.75J work were don it
from B to C ?
Q3/ A gun fires 8 bullets per second into a target x. If the mass of each
bullet is 3g and its speed 600(m)/(s). Then, calculate the power
delivered by the bullets.
Q4/ A box is pulled with a force of 25N to produce a displacement of
15m. If the angle between the force and displacement is 30deg , find the
work done by the force
Q1/ Two forces F1 and F2 act on a 5.00-kg object. If Fi=20.0 N and Fi=15.0 N, find the accelerations in (a) and (b) as represented in the Figure bellow
Q2/ A 1.5 kg book is sliding a long a rough horizontal surface. At point A is moving at 3.21 m/s and at point B it has slowed to 1.25 m/s
A) How much work was done on the book between A and B.
B) If -0.75J of work is done on the book from B to C, how fast is it moving at point C.
C) How fast would it be moving at C if +0.75J work were don it from B to C? Q3/ A gun fires 8 bullets per second into a target X. If the mass of each bullet is 3 g and its speed 600 m/s. Then, calculate the power delivered by the bullets.
Q4/ A box is pulled with a force of 25 N to produce a displacement of 15 m. If the angle between the force and displacement is 30, find the work done by the force