If a car takes a banked curve at less than the ideal speed, friction is needed to keep it from sliding toward the inside of the curve (a real problem on icy mountain roads). (a) Calculate the ideal speed in (m/s) to take a 120 m radius curve banked at 15°. (b) What is the minimum coefficient of friction needed for a frightened driver to take the same curve at 15.0 km/h?Seen 9 months ago herreraluiseduardo80 1 answers
A racket causes a tennis ball to rebound at a speed of 25 m/s The tennis ball is 0.4 kg and is initially moving at a speed of 12 m/s. A high-speed movie film determines that the racket and ball are in contact for 0.05 s. What is the average net force exerted on the ball by the racketSeen 8 months ago tomtom8703 1 answers
A 5.7 kg block slides along a horizontal surface toward a horizontally mounted spring with a spring constant of 150 N/m. At one instant, the block is 5.0 m from the end of the spring and has a speed of 12.0 m/s. If the surface is frictionless, what is the maximum compression of the springSeen 11 months ago savagekid7820 1 answers
I NEED THE RIGHT ANSWER ASAP IT NEEDS TO BE 100% ACCURATE NO LINKS !!! What happens when multiple forces act on an object? 1: The object will move if the forces are unbalanced. 2: The object will always stay in place. 3: The object will always move. 4: The object will move if the forces are balanced.Seen 11 months ago Amgous 1 answers
I NEED THE RIGHT ANSWER ASAP IT NEEDS TO BE 100% ACCURATE NO LINKS !!! Which statement about vectors is true? 1:Vectors are quantities described by both velocity and acceleration. 2: Vectors are quantities described by both magnitude and direction. 3: Vectors are quantities described by both speed and movement. 4: Vectors are quantities described by both force and gravity.Seen 8 months ago Amgous 1 answers
I NEED THE RIGHT ANSWER ASAP NO LINKS !!! Which statement about vectors is true? 1:Vectors are quantities described by both velocity and acceleration. 2: Vectors are quantities described by both magnitude and direction. 3: Vectors are quantities described by both speed and movement. 4: Vectors are quantities described by both force and gravity.Seen 10 months ago Amgous 1 answers
Two cars drive on a straight highway. At time t = 0 , car 1 passes ad marker 0 traveling due east with a speed of 20.0 m/s. At the same time, car 2 is 1.0 km east of road marker 0 traveling at 30.0 m/s due west. Car 1 is speeding up, with an acceleration of 2.5 m/s², and car 2 is slowing down, with an acceleration of -3.2 m/s². (a) Write position-time equations for both cars. Let east be the positive direction. (b) At what time do the two cars meet?Seen 8 months ago ps525038 1 answers
THE BEST ANSWER WILL BE MARKED THE BRAINLIEST! While driving your car at a fast constant speed, you have to press down hard on your gas pedal than you do while driving at a slower constant speed. In both cases, the net force on your car is zero. Explain why you have to apply a greater pressure to your gas pedal.Seen 8 months ago WereSeal 2 answers
1) A bowling has a mass of 5 kg and a speed of 8 m/s. What is its momentum? 2) If the bowling ball started from a momentum of O and reached a momentum of 40 kg*m/s in 2 seconds. What is the impulse impacted on the bowling ball? 3) What is the force of impact for the 2 seconds?Seen 11 months ago emgeer 1 answers
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