Woman drives at a constant velocity

Reference no: EM13672827

At 12:00 p.m., a woman drives at a constant velocity of 50 km/h north for 1 hour, accelerates at a uniform rate for 20 minutes until she reaches a velocity of 100 km/h north, maintains the same velocity for another 20 minutes, accelerates (constant rate) for 20 minutes to 120 km/h, maintains the same velocity for 1 hour, then slows down for one hour to 100 km/h at a constant deceleration, and finally slows to stop in one hour at a constant deceleration.

1. What is her average velocity from 12:00 to 1:00p.m?

2. What is her instantaneous velocity at 12:20 p.m?

3. What is her average acceleration from 12:00 to 1:00p.m?

4. What is her average acceleration from 1:00 to 2:00p.m?

5. What is her average acceleration from 1:30 to 4:00p.m?

6. What is her average velocity from 1:00 to 2:00 p.m?

Reference no: EM13672827

Questions Cloud

Discuss the difference between a change in demand : Discuss the difference between a change in demand and a change in quantity demanded in terms of causes and in how they appear graphically.

What was his average speed and average velocity : A man walks 3 miles east in 1 hour at a constant velocity, then walks two miles east at a constant velocity in 20 minutes, then two miles east at a constant velocity in 40 minutes, then rests for one hour and then turns around and walks eight miles w..

A highway curve has a radius : A highway curve has a radius of 0.14 km and is unbanked. A car weighing 12 kN goes around the curve at a speed of24 m/s without slipping. What is the magnitude of the horizontal force of the road on the car?

How far apart are adjacent interference fringes : Two thin slits are 0.050 mm apart. Monochromatic light of wavelength 634 nm falls on the slits. If there is a screen 6.0 m away, how far apart are adjacent interference fringes?

Woman drives at a constant velocity : At 12:00 p.m., a woman drives at a constant velocity of 50 km/h north for 1 hour, accelerates at a uniform rate for 20 minutes until she reaches a velocity of 100 km/h north, maintains the same velocity for another 20 minutes, accelerates (constant r..

A doubly charged ion with velocity : A doubly charged ion with velocity 6.9 × 106 m/s moves in a path of radius30 cm in a magnetic field of 0.80 T in a mass spectrometer. What is the mass of this ion?

What is the angular separation among the first two minima : A single slit, which is 0.050 mm wide, is illuminated with light of 550 nm wavelength. What is the angular separation among the first two minima on either side of the central maximum?

The electron and proton in a hydrogen atom : The electron and proton in a hydrogen atom are separated by a distance of approximately 5.3x10^(-11) m. Discover the magnitudes of the electric force and the gravitational force among the two particles.

Discover the angle of the thread : A small sphere with a mass of 2.00×10−3gand carrying a charge of 4.80×10−8 C hangs from a thread near a very large, charged insulating sheet, as shown in the figure . The charge density on the sheet is−2.30×10−9 C/m^2. Discover the angle of the threa..

User Account

All Pages