A 2.1 ✕ 103-kg car starts from rest at the top of a
5.5-m-long driveway that is inclined at 16° with the horizontal. If
an average friction force of 4.0 ✕ 103 N impedes the
motion, find the speed of the car at the bottom of the
driveway.
m/s
A 2.1 ✕ 103-kg car starts from rest at the top of a 5.5-m-long driveway that...
A 2.1 ❝ 103-kg car starts from rest at the top of a 4.8-m-long driveway that is inclined at 23° with the horizontal. If an average friction force of 4.0 ❝ 103 N impedes the motion, find the speed of the car at the bottom of the driveway.
A 2.1 ? 103-kg car starts from rest at the top of a 4.1-m-long driveway that is inclined at 16
A 3900 kg car is parked at the top of an 8.7 m long driveway that is sloped at 17? with the horizontal. The parking brake fails. If an average friction force of 4200 N im- pedes the motion, find the speed of the car at the bottom of the driveway. The acceleration of gravity is 9.8 m/s2 . Starting from rest, a 10.0 kg suitcase slides 3.00 m down a frictionless ramp inclined at 31.0? from the floor. The...
4. A 5000 kg railroad car starts from rest at the top of a 105 m high hill and rolls to the bottom after a horizontal displacement of 1000 m. At the bottom of the hill its speed is 9.97 m/s. What is the coefficient of rolling friction between the railroad car and the steel tracks?
AP Physics 1 - Kinetic Energy and Work Name: Due Thursday 10/24 on itslearning 1. A student wearing frictionless roller skates on a horizontal surface is pushed by a friend with a constant force of 45 N. How far must the student be pushed, starting from rest, so that her final kinetic energy is 352 J? 2. A 2100 kg car starts from rest at the top of a driveway that is sloped at an angle of 20° with the...
a 1200kg car coasts from rest down a driveway that is inclined 20degrees. to the horizontal and is 15m long. how fast is the car going at the end of the delivery if.... (a) friction is negligible (book answer is 10m/s) (b) a friction force of 3000n opposes the motion? (book answer is 5.1 m/s) dont know where to begin to solve these 2questions. I tried differant formulas, but nothing I tried came out to the answers in the book....
An object with a mass, m = 5 kg, is released from rest at the top of the ramp. The length of the ramp is 2.3 m. The object slides down the ramp reaching a speed of 2.1 m/s at the bottom. a) If the friction force between the ramp and the object is 3 N, find the angle between the ramp and the horizontal theta (in degrees). b) What speed (in m/s) does the object reach at the bottom...
A mechanic pushes a 2.60 ✕ 103-kg car from rest to a speed of v, doing 4,770 J of work in the process. During this time, the car moves 20.0 m. Neglecting friction between car and road, find v and the horizontal force exerted on the car. (a) the speed v m/s (b) the horizontal force exerted on the car (Enter the magnitude.) N
A 1000 kg race car starts from rest and reaches a speed of 100 km/h in 20 s. What is the power delivered by the car’s engine? (2 points). A 1 kg mass is released from the top of a smooth slide of height 2m. At the bottom of the slide the mass slides on a horizontal surface and stops at a distance of 5 m. What is the coefficient of kinetic friction of the horizontal surface? (3.5 points). The...
A skier starts from rest from the top of a 285m hilland 24 m long. What is thefriction force if theskier’s speed at the bottom of the hill is 20m/s and his mass is 50 kg?