4. A constant 80-N force acts on a 5.0 kg box. The box initially is moving...
4. A constant 80-N force acts on a 5.0 kg box. The box initially is moving at 20 m/s in the direction of the force, and 3.0 s later the box is moving at 68 m/s. Determine both the work done by this force and the average power delivered by the force during the 3.0-s interval. Ans: W=11kJ, P= 3.5kW
Homework Answers
Add Answer to:
4. A constant 80-N force acts on a 5.0 kg box. The box initially
is moving...
A constant 74.6-N force acts on a 4.99-kg box. The box initially is moving at 15.1...
A constant 74.6-N force acts on a 4.99-kg box. The box initially is moving at 15.1 m/s in the direction of the force, and 2.93 s later the box is moving at 76.5 m/s. Determine the work (in J) done by this force. You may assume that the box experiences constant acceleration, but do not assume that only one force acts on the box.
show work for both questions please!! A constant force acts on a 5.0 kg object and...
show work for both questions please!!
A constant force acts on a 5.0 kg object and reduces its velocity from 7.0 m/s to 3.0 m/s in a time of 3.0 s. Determine the force. A 600-Kg car is coasting along a level road at 30m/s. (a) How large is the retarding force (assumed constant) is required to stop it in a distance of 70m2 (b) What is the minimum coefficient of friction between tires and roadway if this is to...
he only force acting on a 4.9 kg canister that is moving in an xy plane...
he only force acting on a 4.9 kg canister that is moving in an xy plane has a magnitude of 5.9 N. The canister initially has a velocity of 3.0 m/s in the positive x direction, and some time later has a velocity of 7.5 m/s in the positive y direction. How much work is done on the canister by the 5.9 N force during this time?
physics.com <Assignment 6 Problem 7.61 A 5.0 kg object moving in two dimensions initially has a...
physics.com <Assignment 6 Problem 7.61 A 5.0 kg object moving in two dimensions initially has a velocity öz = (12.0 i + + 22.0 j) m/s. A net force F then acts on the object for 2.0 s, after which the object's velocity is ū2 = (15.0 i + 28.0 î) m/s. Part A Determine the work done by F on the object. Enter your answer in joules. AEO ? W = J Submit Request Answer Provide Feedback
A force given by F(x) = 2x3 (in N/m3) acts on a 1-kg mass moving on...
A force given by F(x) = 2x3 (in N/m3) acts on a 1-kg mass moving on a frictionless surface. The mass moves from x = 1 m to x = 5 m. Assume all motion is along a straight line. (a) How much work is done by the force? (b) If the mass has a speed of 1.0 m/s at x = 1 m, what is its speed at x = 5.0 m?
A force of 6.4 N acts on a 22 kg body initially at rest. Compute the...
A force of 6.4 N acts on a 22 kg body initially at rest. Compute the work done by the force in (a) the first, (b) the second, and (c) the third seconds and (d) the instantaneous power due to the force at the end of the third second.
A force F = (3.10N) î +(7.20N)ị + (7.30 N) k acts on a 6.30 kg...
A force F = (3.10N) î +(7.20N)ị + (7.30 N) k acts on a 6.30 kg mobile object that moves from an initial position à ; = (6.60m) î + (5.40 m)ſ +(3.80 m) Ê to a final position of ds = (6.20m) î +(7.70 m) Î + (3.30 m) î in 8.50 s. Find (a) the work done on the object by the force in the 8.50 s interval, (b) the average power due to the force during that...
04 Torce - (2.001 + 9.00J + J.JUK) N acts on a 2.90 kg object that...
04 Torce - (2.001 + 9.00J + J.JUK) N acts on a 2.90 kg object that moves in time interval 2.10 s from an initial posi- tion 7= (2.70i - 2.90j + 5.50k) m to a final position 72 = (-4.10i + 3.30j + 5.40k) m. Find (a) the work done on the object by the force in that time interval, (b) the average power due to the e Pare = 2 force during that time interval, and (c) the...
An object of mass 0.61 kg is initially at rest. When a force acts on it...
An object of mass 0.61 kg is initially at rest. When a force acts on it for 2.9 ms it acquires a speed of 14.8 m/s. Find the magnitude (in N) of the average force acting on the object during the 2.9 ms time interval.
An object of mass 0.53 kg is initially at rest. When a force acts on it...
An object of mass 0.53 kg is initially at rest. When a force acts on it for 2.9 ms it acquires a speed of 14.1 m/s. Find the magnitude (in N) of the average force acting on the object during the 2.9 ms time interval. N
show work for both questions please!!
A constant force acts on a 5.0 kg object and reduces its velocity from 7.0 m/s to 3.0 m/s in a time of 3.0 s. Determine the force. A 600-Kg car is coasting along a level road at 30m/s. (a) How large is the retarding force (assumed constant) is required to stop it in a distance of 70m2 (b) What is the minimum coefficient of friction between tires and roadway if this is to...
physics.com <Assignment 6 Problem 7.61 A 5.0 kg object moving in two dimensions initially has a velocity öz = (12.0 i + + 22.0 j) m/s. A net force F then acts on the object for 2.0 s, after which the object's velocity is ū2 = (15.0 i + 28.0 î) m/s. Part A Determine the work done by F on the object. Enter your answer in joules. AEO ? W = J Submit Request Answer Provide Feedback
A force F = (3.10N) î +(7.20N)ị + (7.30 N) k acts on a 6.30 kg mobile object that moves from an initial position à ; = (6.60m) î + (5.40 m)ſ +(3.80 m) Ê to a final position of ds = (6.20m) î +(7.70 m) Î + (3.30 m) î in 8.50 s. Find (a) the work done on the object by the force in the 8.50 s interval, (b) the average power due to the force during that...
04 Torce - (2.001 + 9.00J + J.JUK) N acts on a 2.90 kg object that moves in time interval 2.10 s from an initial posi- tion 7= (2.70i - 2.90j + 5.50k) m to a final position 72 = (-4.10i + 3.30j + 5.40k) m. Find (a) the work done on the object by the force in that time interval, (b) the average power due to the e Pare = 2 force during that time interval, and (c) the...
An object of mass 0.53 kg is initially at rest. When a force acts on it for 2.9 ms it acquires a speed of 14.1 m/s. Find the magnitude (in N) of the average force acting on the object during the 2.9 ms time interval. N
Most questions answered within 3 hours.
-
The mean waiting time at the drive-through of a fast-food
restaurant from the time an order...
asked 9 minutes ago -
The pitch (p) of a helix is defined as p = dn, in which n is...
asked 11 minutes ago -
Do you agree that the declining stock of social capital is the
blame for the failure...
asked 15 minutes ago -
A researcher is interested in whether coffee consumption helps
with performance on reading comprehension tasks. The...
asked 25 minutes ago -
it has been estimated since the beginning of the human race that
about 133 metric ton...
asked 30 minutes ago -
Where must Medicare prescription drug plans allow for
participants to fill their prescriptions?
asked 34 minutes ago -
Five moles of monatomic ideal gas have initial pressure 2.50 ×
103 Pa and initial volume...
asked 48 minutes ago -
A resistor and the capacitor are used to control the timing in
the RC circuit of...
asked 48 minutes ago -
Living in a group could bring several disadvantages to an
individual. What are some of the...
asked 1 hour ago -
Complete and balance the following reactions. In case of no
reaction occurring write NR.
Mix #1:...
asked 1 hour ago -
If an economy consumes 75% of any increase in income, then an
increase in autonomous investment...
asked 1 hour ago -
A shotputter throws the shot with an initial speed of 15.8 m/s
at a 38.0 ∘...
asked 1 hour ago