# physics

posted by .

A penguin sliding on ice has an initial velocity of 5 m/s due north. Due to a strong wind, the penguin has an acceleration of 2 m/s2 SE. What is the penguin’s displacement (magnitude and direction) after 4 seconds

• physics -

SE = -45 deg. = 315 deg CCW.

a(v) = 2sin315 = -1.414m/s^2. = ver.
component of acceleration.

D = Vo*t + 0.5at^2,
D = 5*4 + 0.5*(-1.414)*4^2,
D = 20 - 11.3 = 9.7m. Due North.

## Similar Questions

1. ### physics

A 4.1 kg penguin runs onto a huge sheet of frictionless Antarctic ice. At t=0 it is at x=0 and y=0 with an initial velocity of 0.57 m/s along the positive x-axis. It slides while being pushed by the wind with a force of 0.31 N directed …
2. ### Physics

Anna pushes horizontally on a 52-kg penguin with force of 10 N, but the penguin does not budge. Find the force of static friction between the penguin’s feet and the ground. I have no idea where to start. Any help is appreciated. …
3. ### physics

A 50-kg penguin stands on ice. A helium balloon is attached to the penguin by means of a harness and pulls upward with a force of 90 N. What is the normal force of the ice on the penguin?
4. ### science

A 6.90 kg penguin runs onto a huge sheet of frictionless Arctic ice. At t=0 it is at x=0 and y=0 with an initial velocity of 0.47 m/s along the positive x-axis. It slides while being pushed by the wind with a force of 0.49 N directed …
5. ### physics

A 45-kg penguin slides off the edge of an ice shelf and hits the water 1.7 s later. What is the magnitude of the gravitational impulse on the penguin during its fall?
6. ### physics

A 5.70 kg penguin runs onto a huge sheet of frictionless Arctic ice. At t=0 it is at x=0 and y=0 with an initial velocity of 0.35 m/s along the positive x-axis. It slides while being pushed by the wind with a force of 0.45 N directed …
7. ### Physics

A 10 kg penguin slips down a rough incline of 35o . If the coefficient of kinetic friction between the penguin and the incline is 0.15, determine the penguin’s acceleration.
8. ### physics

A 38 kg penguin is sliding across a patch of ice, starting at 13 m/s. If the coefficient of friction is .12, how far will the penguin slide before incomes to a halt.
9. ### Physics

A penguin has a mass of 13 kg. The penguin slides over the ice for a distance of 50.7 m in 1.7 s before coming to a complete stop. The penguin uniformly accelerates during the entire time period. What is the net force exerted on the …
10. ### Physics

A 5.0 kg penguin sits on top of a 12 kg sled, as in the figure. A horizontal force of 45 N is applied to the sled, but the penguin keeps himself stationary by holding onto a string attached to the wall. The coefficient of kinetic friction …

More Similar Questions

Post a New Question