Physics Answers

It shows a 2.0 kg block is being pushed along a rough horizontal surface by a force F=30N at an angle 60° from the normal. If the block moves at constant acceleration 0.5ms-² , what is the coefficient of friction ?

A VEHICLE ACCELERATES FROM TO A VELOCITY 20M/S IN 10 SECONDS IT MAINTAINS ITS SPEED FOR THE NEXT 10 SECONDS THEN IT DECELERATES FOR 20 SECONDS UNTIL IT STOPS

In the javelin throw, hammer throw, or discus, the goal is maximum distance. Ignoring air resistance and the athlete’s biomechanics, at what angle should the athlete throw these objects to maximize the distance they travel before hitting the ground

Two forces act on a 17.2 kg object, A= 27N @27° and B= 43N @ x°. The direction of B is __ degrees if the acceleration is 3.79477 m/s^2 @ 0°

Two 2.5 kg bowling balls are 0.50 m apart. What is the force of gravity of the first bowling ball due to the second? Compare this to the force of gravity on the second bowling ball due to the first.

A projectile is fired horizontally from a height of 10 m above level ground. The projectile lands a horizontal distance of 15 m from where it was launched.

What velocity must a 15kg object be moving at in order for it to have a momentum of 54kgm/s?

The spiral spring of a spring balance is 25cm, when 5 hang on it and 30cm long when the wait is 10N. What is the length of the spring if the weight is 3N

A force of 300 N acts on a 2.5 m long and 10 kg rod initially at rest as shown in the picture below. What is the torque acting on the rod?

What is the gratest acceleration that can be generated by a runner if the coefficient of statics friction between the shoez and road is 0.95?