Speed
Emily Walks 1.2 kilometers to school in 15 minutes what is her speed in meter per second?
1.33m/s
A 10 kg box is pushed with an acceleration of 2 m/s^2 What is the force applied?
20 N
A cyclist and bike have a combined mass of 80 kg. If they are traveling at a speed of 8 m/s, what is their kinetic energy.
The kinetic energy is 2560 Joules
A 2kg book is placed on shelf 3 meters high. What is its gravitational potential energy?
58.8 Joules
A 10 kg cart is moving to the right at a speed of 2 m/s. It collides and sticks to a 5 kg cart that was at rest. What is the velocity of the combined carts after the collision?
The combined cart moves at 1.33 m/s after the collision.
A car travels 180 km in 3 hours. What is its average speed?
60km/h
A 500 N force is applied to a 50 kg cart. What is the acceleration of the cart?
10 m/s ^2
A car with a mass of 1200 kg is initially traveling at 25 m/s. When applying brakes , it's kinetic energy is dissipated through friction.
375000
A diver with a mass of 60 kg stands on a diving platform 10 meter above the water. How much potential energy does the diver have relative to the water?
5880 joules
A football player with a mass of 80kg runs at a speed of 6 m/s. What is his momentum
480 kg m/s
A train is moving at 90km/h. How far will it travel in 40 minutes.
60km
What is the weight (force due to gravity) of a 12kg object on Earth?
117.6 N
Object A has a mass of 3kg and is traveling at 12 m/s. Object B has a mass of 6kg and is traveling at 8 m/s. Which object possesses more kinetic energy?
Object A has more kinetic energy than object b
How much potential energy is gained when 15 kg box is lifted from the ground to a height of 2.5 meters?
367.5 joules
Object A has a mass of 5kg and is moving at 10 m/s. Object B has a mass 10 kg and is moving at 5 m/s. Which object has more momentum?
Both objects have equal momentum of 50 kg m/s
Liam biked 18km in 1 hour and 30 minutes. What was his average speed in km/h?
12km/h
A 20 kg box is being pushed with 100 N force, but there is 40 N of friction opposing the motion. What is the net force acting on the box?
60 N
A 60 kg skateboarder rolls down a ramp and reaches the bottom with a speed of 10 m/s. How much kinetic energy does the skateboarder have at the bottom of the ramp?
3000 Joules
A 25kg child is sitting at the top of a slide that is 4 meters high. How much PE does the child have at the top?
980 Joules
A 12 kg is rolling at 3 m/s What is the momentum and how much momentum must be removed (by friction or force) to bring it to a stop
The cart's momentum is 36 kg m/s and that must be removed to stop it.
A bus leaves the station traveling at 50 km/h. After 2 hours, a car leaves the same station and travels at 80km/h. How long will it take the car to catch up with the bus?
3.33 hours
A 4kg ball is moving and comes to a stop in 2 seconds due to a constant force. If the initial speed was 10 m/s what was the force applied?
20 N
A rock with a mass of 5kg falls from a cliff and just before hitting the ground, it has a speed of 18 m/s.
810 Joules
A rock sitting on the edge of a cliff has 9800 J of GPE. If the cliff is 20 meters high, what is the rocks mass?
50 kg
Cart A (2kg ) is moving at 4 m/s and collides with Cart B (3kg), which is at rest. After the collision, they stick together. What is their final velocity?
after the collision, the two carts move together at 1.6 m/s