A small 1130 kg rocket applies its thrusters from rest to generate a net force of F=1810t+2950newtons, where tt is time. Assuming no air resistance, calculate the rocket's velocity, v, in m/s after 12 seconds.   Enter your answer for v in m/s, correct to three significant figures:  m/s

When you drive to work on a winding road, the odometer of your car changes from 27120 km to 27140 km in 30 minutes. The car's average speed was exactly 40 km/hr. The magitude of the car's average velocity was: -more than 40 km/hr or -less than 40 knm/hr

The spring constant is 26 N/cm, the length of the spring is 12 cm, the relaxed length is 9 cm, and the object's mass is 9 kg.  This time, calculate the acceleration of the object in m/s2.  (If you think that we need more information, enter -100000.)

To visit your friend, you first drive on a highway at 55 mi/h for 1.6 hours and then drive on a local road at 20 mi/h for 0.7 hours. What is the average velocity of your trip in mi/h to your friend's home? Your Answer: Answer

Figure (a) applies to the spring in a cork gun (Figure (b)); it shows the spring force as a function of the stretch or compression of the spring. The spring is compressed by 7.00 cm and used to propel a 3.90 g cork from the gun. (a) What is the speed of the cork if it is released as the spring passes through its relaxed position? (b) Suppose, instead, that the cork sticks to the spring and stretches it 1.70 cm before separation occurs. What now is the speed of the cork at the time of release? Force (N) 0.4 0.2 -4-2 2 4 -0.2 -0.4 (a) x (cm) Compressed spring. 0 (b) Cork

The elevations of the ski jumping hill shown below are as follows: hA = 49 m hg = 3.5 m hc = 5.2 m If the velocity of a ski jumper is measured to be 25.4 m/s at position B, what will be the launch velocity (in m/s) at position C [round your final answer to one decimal place]? A hA C B hc nB

Alicia rides her bicycle for 8 hours and is 90 miles from her house. After riding for 12 hours, she is 134 miles away.What is Alicia's average rate during her trip?

The expression for velocity is given: v=d/t - v0. The variables are given: d= 35.0 meters, t= 9.00 seconds, and v0= 3.00meters/seconds. What is the velocity?