A mass pulled by a constant force accelerates from 10 cm/s to 40 cm/s in 5.5 s. A second force accelerates the same mass from rest to 140 cm/s in 15.5 s. If the first force is known to be 3.5 N, that what is the magnitude of the second force?
A mass pulled by a constant force accelerates from 10 cm/s to 40 cm/s in 5.5...
A box of mass 6.0 KG accelerates from rest by a force across the floor at a rate of 2.3 m/s^2 for 5.0s. Find the net work done on the box if the weight is pulled up by a force of 85 N.
An object of 1.0 kg mass is pulled up an inclined plane by a constant force of 10 N that causes a displacement of 0.50 m. The angle of inclination with the horizontal is 30degree. Neglect friction and use g = 10 m/s^2. What is the work done by the net force on the object along the inclined plane? 4.3 J 4.3 kg m/s^2 0 J 2.5 J 3.5 J
⦁ A mass of 40 kg is pulled across a floor ( μk = 0.35) with a force of 200 N directed 30 deg above the floor. What is the magnitude of the friction force acting on the mass? What is the magnitude of the normal force? What is the velocity of the object after 10 sec?
A box with mass M is pulled across a frictionless surface with a constant force F as shown below. 13) What is horizontal acceleration of the box? Mg OF F/M OM F/g 14) What is the normal force on the box? Mg OF F/M ом F/g 15) After the block is accelerated for 5 s, the force stops pulling on the box. What happens? The block comes to rest. The block continues in the same direction with a constant speed....
A mass-spring system oscillates with an amplitude of 10 cm. If the force constant of the spring of 315 N/m and the mass is 0.8 kg, what is the magnitude of the maximum acceleration of the mass in m/s2? Enter a number with one digit behind the decimal point.
5. A mass of 225 g is suspended from a vertical spring. It is then pulled down 15 cm and released. The mass completes 10 oscillations in a time of 32 seconds. What is the force constant for the spring? 6. A block of unknown mass is attached to a spring with a force constant of 6.50 N/m and undergoes simple harmonic motion with an amplitude of 10.0 cm. When the block is halfway between its equilibrium position and the...
A truck on a flat road accelerates from rest at a constant rate and covers a distance of 100 m in 7 s. The mass of the truck is 800 kg. What is the acceleration of the truck? m/s2 Tries 0/3 What is the net force on the truck? N Tries 0/3 The truck is now loaded with heavy equipment and has a NEW total mass of 1200 kg. If the same net force is applied to the car as calculated above,...
A block of mass m 2.00 kg is attached to a spring of force constant k- 525 N/m as shown in the figure below. The block is pulled to a position x 4.00 cm to the right of equilibrium and released from rest. (o) Find the speed the block has as it passes through equilibrium if the horizontal surface is frictionless m/s (b) Find the speed the block has as it passes through equilibrium (for the first time) if the...
A 24.0-kg crate, starting from rest, is pulled across a floor with a constant horizontal force of 225 N. For the first 11.0 m the floor is frictionless, and for the next 10.0 m the coefficient of friction is 0.20. What is the final speed of the crate after being pulled these 21.0 m ?
A 46.0-kg crate, starting from rest, is pulled across a floor with a constant horizontal force of 225 N. For the first 11.0 m the floor is frictionless, and for the next 10.0 m the coefficient of friction is 0.20. What is the final speed of the crate after being pulled these 21.0 m?