Without friction, the players would have trouble moving, as friction between their feet and the ground is part of what allows a person to walk or run. It would also be more difficult to make the ball start moving, or effectively catch it as friction helps grip the ball. It would also be more difficult to stop opposing players as friction between a tackler and the person being tackled is a large part of what allows the tackle to happen in many cases.
Without friction, feet would simply slide along the ground rather then gripping it to propel a player forward or stop him, and the ball would be so slippery it would be nearly impossible to hold onto without completely cradling it.
Static
for lifting the object there is no role of friction,but of air friction.since no info,. is given about it so air friction = 0.thereby for lifting we have mg = mass * 9.8 (the wight of the object). and for sliding we have 0.3*mg . therefore 0.7mg of more force is required to lift it.
The force needed to slide the wooden block can be calculated using the formula: force = friction coefficient * mass * gravity. Given that the mass is 300 slugs and the friction coefficient is 0.80, the force required will be 2400 lbs.
Moving resistance for a vehicle refers to the forces that impede its motion when in motion, such as air resistance, rolling resistance from the tires, and friction in the moving parts of the vehicle. These factors contribute to the energy needed to overcome resistance and propel the vehicle forward.
Less friction on an object results in smoother and faster movement. It reduces the force needed to overcome resistance, allowing the object to move more efficiently and with less energy loss due to heat or wear.
False. The force needed to overcome static friction is usually greater than the force needed to overcome kinetic friction.
Friction is essential for Walking and other movement. So obviously it is of paramount importance in football. Without friction, A player can't grip the ball, the ground pr other players. Running, which is the base of football, doesnt exist without friction. Hence, no friction = no football.
first you ejaculate onto the football, rub it around in your hands a bit and slide it across a smooth floor and WA LA you have sliding friction on a football XD
first they are called cleats not boots and they dont have friction.
by oiling
when machines are used
True -It's "False"!
gravity and friction.
Rotating bearings.
False. The force needed to overcome static friction is typically greater than that needed to overcome kinetic friction. Static friction is the resistance to motion when an object is at rest, while kinetic friction is the resistance to motion when an object is already in motion. Static friction requires more force to overcome because it is necessary to break the initial "stickiness" between the surfaces.
cheese burger.
because it kills dinasaurs everywhere