A stone thrown horizontally at a speed of 5m/s from the top of a cliff 78.4m high. A. How long does it take the stone to reach the bottom of the cliff? B. How far from the base of the cliff does the stone strike the ground?
A car traveling in a straight line has a velocity of 6m/s at some instant. After 6.32s its velocity is 13.2m/s . What is the average acceleration in this time interval?
A man hits a golf ball (0.2 kg) which accelerates at a rate of 20 m/s2. What amount of force acted on the ball?
A cart rolling down an incline for 5.0 seconds has an acceleration of 4.0 m/sec2. If the cart has a beginning speed of 2.0 m/sec, what is its final speed?
A toaster is plugged into a 120-volt household circuit. It draws 5 amps of current. a. What is the resistance of the toaster? b. What is the power of the toaster in watts? c. What is the power in kilowatts?
A balloon holds 20.0 liters of helium at 10.0°C. If the temperature increases to 50.0°C, and the pressure does not change, what will be the new volume of the balloon?
A fire hose 5 centimeters in diameter is used to fill a 225-liter bucket. If it takes 15 seconds to fill the bucket, what is the speed at ...
Starting at a certain speed, a bicyclist travels 200m. Suppose the bicyclist undergoes a constant acceleration of 1.20m/s squared. If the final speed is 25.0m/s, what was the bicyclists initial speed?
A car drives past a pole at 40km/hr. Describe the motion from the point of view of a) the car, and b) the pole. Thanks in advance!
