Kinematics
An airplane accelerates down a runway at 3.20 m/s2 for 32.8 s until is finally lifts off the ground. Determine the distance traveled before takeoff.
1720 m
What is the mass of a person on the moon (where g = 1/6 g on earth) who weighs 735.75 N on earth?
75 kg
A 2 kg cart moving at 3.0 m/s on a frictionless track collides and sticks to a stationary 1.0 kg cart. What is the velocity of the combined carts after the collision?
2 m/s
PE of a 5 kg object located 2 meters above the ground.
98.1 J
Equivalent resistance of a series circuit with a 20V battery, a 6 Ohm resistor and a 12 Ohm resistor.
18 Ohms
I walked north 6.0 km at 6.0 km/h and then west 10 km at 5.0 km/hr. What is his displacement for the entire walk? (Include units and angle)
11.7 km at 59° west of north
The frictional force needed to accelerate a 1000 kg vehicle from rest on a dry, level asphalt road.
8339 Newtons
A 5-N force is applied to a 3-kg ball to change its velocity from +9 m/s to +3 m/s. This impulse causes the momentum change of the ball to be ____ kg•m/s
-18
What is the kinetic energy of a 1173.4 kg aerodynamic sports car moving at 25.6 m/s?
384499.712 J
Determine the electrical force between two charges of 5 microcoulombs and 2 microcoulombs that are 2 meters apart.
0.0225 N
A baseball is popped straight up into the air and has a hang-time of 6.25 s. Determine the height to which the ball rises before it reaches its peak.
48.0 m
A 0.250-kg rightward moving air track glider decreases its speed from 0.872 m/s to 0.798 m/s over the length of a 1.71-m long air track. Determine the average resistive force acting upon the air track glider.
0.00903 N
A 46-gram tennis ball is launched from a 1.35-kg homemade cannon. If the cannon recoils with a speed of 2.1 m/s, determine the muzzle speed of the tennis ball.
62 m/s
A truck pulls a 200 kg boulder with a force of 500 N 250 m over a period of 35 seconds. What is the power?
3571 Watts
A parallel circuit hooked up to a 12 v battery has 3 resistors of 12 ohms, 11 ohms, and 6 ohms. Find the total resistance of the circuit
2.93 ohms