If a 0.50-kg block initially at rest on a frictionless, horizontal surface is acted upon by a force of 6.8 N for a distance of 5.4 m, then what would be the block's velocity

a 4.5 kg dog stands on an 18 kg flatboat at distance D=6.1 m from the shore. It walks 2.4 m along the boat toward shore and then stops. Assuming no friction between the boat and the water, find how far the dog is then from the shore. (

A car is moving at 50.0km/hr. it’s mass is 1500kg. if it is to reduce its speed by 50% over 100.0m how big must the force from its brakes be?

A car going 15 m/s is brought to rest in a distance of 2.0 m as it strikes a pile of dirt. How large an average force is exerted by seatbelts on a 90-kg passenger as the car is stopped?

An electron with a speed of 1.0 x 107 m/s moves horizontally into a region where a constant vertical force of 4.3 × 10-16 N acts on it. The mass of the electron is 9.11 × 10-31 kg. Determine the vertical distance the electron is deflected during the time it has moved 35 mm horizontally.

A golf ball of mass 0.050 kg is at rest on the tee. After being struck, its velocity is 102 m/s. Help me to conceptualize how to get the average force exerted, if the club and ball were in contact 0.81 ms (0.00081 s)?

When jumping straight down, you can be seriously injured if you land stiff-legged. One way to avoid injury is to bend your knees upon landing to reduce the force of the impact. A 84.8-kg man just before contact with the ground has a speed of 7.88 m/s. (a) In a stiff- legged landing he comes to a halt in 2.35 ms. Find the magnitude of the average net force that acts on him during this time. (b) When he bends his knees, he comes to a halt in 0.217 s. Find the magnitude of the average net force now. (c) During the landing, the force of the ground on the man points upward, while the force due to gravity points downward. The average net force acting on the man includes both of these forces. Taking into account the directions of the forces, find the magnitude of the force applied by the ground on the man in part (b). (a) Number i (b) Number i (c) Number i Units Units Units > >

A 5.8-kg toboggan is kicked on a frozen pond, such that it acquires a speed of 2.1 m/s to the right. The coefficient of friction between the pond and the toboggan is 0.18. Determine the distance that the toboggan slides before coming to rest. Answer: m (round to the nearest hundredth)

A 76.0 kg person is riding in a car moving at 16.0 m/s when the car runs into a bridge abutment. (Assume the initial velocity is in the positive direction.) (a) Calculate the average force (in N) on the person if he is stopped by a padded dashboard that compresses an average of 1.00 cm. (Indicate the direction with the sign of your answer.) x N (b) Calculate the average force (in N) on the person if he is stopped by an air bag that compresses an average of 15.0 cm. (Indicate the direction with the sign of your answer.) X N

Air in a 124 km/h wind strikes head-on the face of a building 49 m wide by 71 m high and is brought to rest. If air has a mass of 1.3 kg per cubic meter, determine the average force of the wind on the building. Express your answer to two significant figures and include the appropriate units.