# Test_1_A - PHYS 2425 - Dr. Honan - Test 1 - A Possibly...

This preview shows pages 1–2. Sign up to view the full content.

PHYS 2425 - Dr. Honan - Test 1 - A Name _______________ Possibly Useful Information: 1000 liter = 1 m 3 1 ft = 0.3048 m 1 hr = 3600 s g = 9.80 m/s 2 Problem 1 Multiple Choice (4 points each) ______ [i] In the graph describe the velocity and acceleration at t = 0. (a) v < 0, a < 0 (b) v < 0, a = 0 (c) v < 0, a > 0 (d) v = 0, a < 0 (e) v = 0, a = 0 (f) v = 0, a > 0 (g) v > 0, a < 0 (h) v > 0, a = 0 (i) v > 0, a > 0 ______ [ii] When a ball is dropped out of a window it hits the ground at a speed of 12 m/s. If the ball were thrown horizontally out of the same window at a speed of 5 m/s, then what would be its speed when it hits the ground? (a) 0 m/s (b) 5 m/s (c) 7 m/s (d) 12 m/s (e) 13 m/s (f) 17 m/s (g) none of the above ______ [iii] A car decreases its speed while turning right. What is the direction of its acceleration? (a) left (b) right (c) forward (d) backward (e) left and forward (f) left and backward (g) right and forward (h) right and backward (i) cannot be determined ______ [iv] A 120 lb man stands in an elevator that moves upward and has an downward acceleration of g/4. What is the normal force of the floor on the man?

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
This is the end of the preview. Sign up to access the rest of the document.

## This document was uploaded on 02/01/2010.

### Page1 / 3

Test_1_A - PHYS 2425 - Dr. Honan - Test 1 - A Possibly...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document
Ask a homework question - tutors are online