(Answered) Question1 a car has an initial speed of 15 ms-1nbspwhen a

Academics

Question:

1. A car has an initial speed of 15 ms^-1 when a truck rolls out of a driveway 18 m ahead of it. The driver takes 0.35 s to react before applying the brakes. If the car is to just be able to stop before hitting the truck the deceleration of the car will be nearest to:

2. A rock is thrown vertically upwards with a velocity of 30 m.s^-1 from the top of a 25 m high building. When it falls back down it just misses the building and falls to the ground. The acceleration due to gravity is 9.8 m.s^-2. Find the nearest total time of flight of the rock

View complete question

Physics, Academics

Category:- Physics
Reference No.:- M91917244
Price:- $20

Verified Expert

Priced at $40 Now at $20, Verified Solution

Have any Question?Write your Review or question?

Related Questions in Physics

Runner a is initially 59 km west of a flagpole and is

Runner A is initially 5.9 km west of a flagpole and is running with a constant velocity of 8.3 km/h due east. Runner B is initially 4.8 km east of the flagpole and is running with a constant velocity of 7.6 km/h due west ...

Question a projectile is launched at an angle of 30 degis

Question: A projectile is launched at an angle of 30 deg.Is there any point on the trajectory where V and A are parallel to each other? Is there any point where V and A are perpendicular to each other? The response must ...

Question part a what is the reaction energy q of this

Question: PART A: What is the reaction energy Q of this reaction? Use c2 = 931.5 MeV/u. PART B: Using fission, what mass m of uranium-235 would be necessary to supply all of the energy that the United States uses in a ye ...

A square hockey table has a side length of s152m on the

A square hockey table has a side length of s=1.52m. On the table, pucks slide across a horizontal table with effectively no friction. (Ignore friction). At the time t=0s a puck is launched with a speed of v1=0.300 m/s fr ...

Consider the roller coaster below in terms of speedwhere

Consider the roller coaster below in terms of speed. Where will it speed up and where will it slow down? From this consideration, make a sketch of a velocity-time graph for this image. Explain your graph. Post your sketc ...

Question in an old-fashioned amusement park ride passengers

Question: In an old-fashioned amusement park ride, passengers stand inside a3.0-m-tall, 5.0-m-diameter hollow steel cylinder with their backsagainst the wall. The cylinder begins to rotate about a verticalaxis. Then the ...

Question a person takes a trip driving with a constant

Question: A person takes a trip, driving with a constant speed of 89.5 km/h, except for a 22 minute rest stop. If the persons average speed is 77.8 km/h how much time is spent on the trip and what distance did they trave ...

Question a small particle has charge -200 uc and mass

Question: A small particle has charge -2.00 uC and mass 1.50Ã-10-4 kg. It moves from point A, where the electric potential is V(A) = 200 V, to point B, where the electric potential V(B) = 920 V is greater than the potent ...

Question a solid gold bar is pulled up from the hold of the

Question: A solid gold bar is pulled up from the hold of the sunken RMSTitanic. (a) What happens to its volume as it goes from the pressure atthe ship to the lower pressure at the ocean's pressure? (b) The pressure diffe ...

Question the planet mercurys surface temperature varies

Question: The planet Mercury's surface temperature varies from 700 K during the day to 90 K at night. Part 1: What is the temperature in °C during the day? Part 2: What is the temperature in °C at night? Part 3: What is ...

4,153,160 Questions Asked
13,132 Experts
2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

Recent Questions

Ask Physics Expert