Force due to water F = 1.7 × 41 kg.m/s^2
=) F = 69.7 N
Now acceleration of m=62kg is
a = F/m = 69.7/62 = 1.124 m/s^2 = 1.12m/s^2
031 10.0 points You want to enlarge a skating surface so you stand on the ice...
Two friends, Al and Jo, have a combined mass of 168 kg. At an ice skating rink they stand close together on skates, at rest and facing each other, with a compressed spring between them. The spring is kept from pushing them apart because they are holding each other. When they release their arms, Al moves off in one direction at a speed of 0.75 m/s, while Jo moves off in the opposite direction at a speed of 1.5 m/s....
015 10.0 points A highway curves to the left with radius o curvature of 34 m and is banked at 18° s that cars can take this curve at higher speeds Consider a car of mass 1777 kg whose tires have a static friction coefficient 0.58 against the pavement top view R-34111 18 rear view 0.58 How fast can the car take this curve without skidding to the outside of the curve? The acceleration of gravity is 9.8 m/s2. Answer...
015 10.0 points A highway curves to the left with radius of curvature of 35 m and is banked at 16° So that cars can take this curve at higher speeds Consider a car of mass 1341 kg whose tires have a static friction coefficient 0.44 against the pavement top view R 35 m 16 rear 0. view How fast can the car take this curve without skidding to the outside of the curve? The acceleration of gravity is 9.8...
015 10.0 points A highway curves to the left with radius of curvature of 34 m and is banked at 18° so that cars can take this curve at higher speeds. Consider a car of mass 1777 kg whose tires have a static friction coefficient 0.58 against the pavement. top view R 34 m 18 rear view μ = 0.58 How fast can the car take this curve without skidding to the outside of the curve? The acceleration of gravity...
015 10.0 points A highway curves to the left with radius of curvature of 39 m and is banked at 22° so that cars can take this curve at higher speeds Consider a car of mass 1703 kg whose tires have a static friction coefficient 0.84 against the pavement. top view R=39 m A2 rear view 0- How fast can the car take this curve withont skidding to the outside of the curve? The acceleration of gravity is 9.8 m/s...
1 point) A block of ice is held 2 m below the surface of the water and then released. What is the magnitude of its initial acceleration? (calculators permitted in this question) m/s2 If its mass is 1.9 kg and its frictional factor is 3 kg/s, what is the terminal upward speed? (Use 920 kg/m2 for the density of ice.) Hint: Use Eqn 13-11, and think about how you need to balance the bouyant, gravitational, and drag forces if you...
027 (part I of 3) 10.0 points A block is at rest on the incline shown in the figure. The coefficients of static and ki- netic friction are ?,-0.62 and ?? 0.53, respectively. The acceleration of gravity is 9.8 m/s*. 29° What is the frictional force acting on the 41 kg mass? Answer in units of N 028 (part 2 of 3) 10.0 points What is the largest angle which the incline can have so that the mass does not...
023 (part 1 of 3) 10.0 points A block is at rest on the incline shown in the figure. The coefficients of static and ki- netic friction are μ8-0.55 and respectively. μk = 0.47 The acceleration of gravity is 9.8 m/s2. g kg 27° What is the frictional force acting on the 39 kg mass? Answer in units of N. 024 (part 2 of 3) 10.0 points What is the largest angle which the incline can have so that the...
02 (part 1 of 2) 10.0 points You push a 60.4 kg crate at a constant speed of 2.03 m/s across a horizontal floor with coefficient of kinetic friction 0.14. The acceleration of gravity is 9.8 m/s2 At what rate is work being done on the crate by you? Pa Answer in units of W. 003 (part 2 of 2) 10.0 points At what rate is energy being dissipated by the frictional force? Answer in units of W.
013 (part 1 of 2) 10.0 points A 4.6 kg steel ball and 2.5 m cord of negli- gible mass make up a simple pendulum that can pivot without friction about the point O This pendulum is released from rest in a hor izontal position and when the ball is at its lowest point it strikes a 4.6 kg block sitting at rest on a shelf. Assume that the collision is perfectly elastic and take the coefficient of friction between...